CSS3圆角气泡框，评论对话框

2020-01-27 14:20:11

字体：大中小

来源：转载

供稿：网友

html5圆角气泡提示框，可用于评论对话框、留言或聊天对话框，框中的箭头是制作亮点，也是难点，用传统CSS也可实现，不过用HTML5中的CSS3更容易实现，本代码列举了不同开头方向的提示框样式，便于用户选择使用，也方便学习参考。

<title>CSS3圆角气泡框，评论对话框</title><style>body {    padding:0;     margin:0;     font:1em/1.4 Cambria, Georgia, sans-serif;     color:#333;     background:#fff;}a:link,a:visited {    border-bottom:1px solid #c55500;     text-decoration:none;    color:#c55500; }a:visited {    border-bottom:1px solid #730800;     color:#730800;}a:hover,a:focus,a:active {    border:0;     color:#fff;     background:#c55500;}a:visited:hover,a:visited:focus,a:visited:active {    color:#fff;     background:#730800;}#container {    width:500px;     padding:0 0 50px;     margin:0 auto;}h1 {    margin:1em 0 0;     font-size:2.5em;     font-weight:normal;     line-height:1.2;     text-align:center;}h2 {    margin:0.5em 0 1.5em;     font-size:1.25em;     font-weight:normal;     font-style:italic;     text-align:center;}p {    margin:1em 0;}.content h2 {    margin:2em 0 0.75em;     font-size:2em;     font-weight:bold;     font-style:normal;     text-align:left;}blockquote {    margin:1em 0;}blockquote p {    margin:0;     font-size:2em;}.follow {    clear:both;     margin-top:2em;     font-size:1.125em;}.follow span {    font-weight:bold;}.content {    position:relative;    z-index:1;}.triangle-isosceles {	position:relative;	padding:15px;	margin:1em 0 3em;	color:#000;	background:#f3961c; /* default background for browsers without gradient support */	background:-webkit-gradient(linear, 0 0, 0 100%, from(#f9d835), to(#f3961c));	background:-moz-linear-gradient(#f9d835, #f3961c);	background:-o-linear-gradient(#f9d835, #f3961c);	background:linear-gradient(#f9d835, #f3961c);	-webkit-border-radius:10px;	-moz-border-radius:10px;	border-radius:10px;}.triangle-isosceles.top {	background:-webkit-gradient(linear, 0 0, 0 100%, from(#f3961c), to(#f9d835));	background:-moz-linear-gradient(#f3961c, #f9d835);	background:-o-linear-gradient(#f3961c, #f9d835);	background:linear-gradient(#f3961c, #f9d835);}.triangle-isosceles.left {	margin-left:50px;	background:#f3961c;}.triangle-isosceles.right {	margin-right:50px;	background:#f3961c;}.triangle-isosceles:after {	content:"";	position:absolute;	bottom:-15px;	left:50px;	border-width:15px 15px 0; 	border-style:solid;	border-color:#f3961c transparent;    display:block;     width:0;}.triangle-isosceles.top:after {	top:-15px;	right:50px;	bottom:auto;	left:auto;	border-width:0 15px 15px;	border-color:#f3961c transparent;}.triangle-isosceles.left:after {	top:16px;	left:-50px;	bottom:auto;	border-width:10px 50px 10px 0;	border-color:transparent #f3961c;}.triangle-isosceles.right:after {	top:16px; /* controls vertical position */	right:-50px;	bottom:auto;    left:auto;	border-width:10px 0 10px 50px;	border-color:transparent #f3961c;}.triangle-right {	position:relative;	padding:15px;	margin:1em 0 3em;	color:#fff;	background:#075698; 	/* css3 */	background:-webkit-gradient(linear, 0 0, 0 100%, from(#2e88c4), to(#075698));	background:-moz-linear-gradient(#2e88c4, #075698);	background:-o-linear-gradient(#2e88c4, #075698);	background:linear-gradient(#2e88c4, #075698);	-webkit-border-radius:10px;	-moz-border-radius:10px;	border-radius:10px;}.triangle-right.top {	background:-webkit-gradient(linear, 0 0, 0 100%, from(#075698), to(#2e88c4));	background:-moz-linear-gradient(#075698, #2e88c4);	background:-o-linear-gradient(#075698, #2e88c4);	background:linear-gradient(#075698, #2e88c4);}.triangle-right.left {	margin-left:40px;	background:#075698;}.triangle-right.right {	margin-right:40px;	background:#075698;}.triangle-right:after {	content:"";	position:absolute;	bottom:-20px; /* value = - border-top-width - border-bottom-width */	left:50px; /* controls horizontal position */	border-width:20px 0 0 20px; /* vary these values to change the angle of the vertex */	border-style:solid;	border-color:#075698 transparent;     display:block;     width:0;}.triangle-right.top:after {	top:-20px; /* value = - border-top-width - border-bottom-width */	right:50px; /* controls horizontal position */	bottom:auto;	left:auto;	border-width:20px 20px 0 0; /* vary these values to change the angle of the vertex */	border-color:transparent #075698; }.triangle-right.left:after {	top:16px; 	left:-40px; /* value = - border-left-width - border-right-width */	bottom:auto;	border-width:15px 40px 0 0; /* vary these values to change the angle of the vertex */	border-color:transparent #075698; }.triangle-right.right:after {	top:16px; 	right:-40px; /* value = - border-left-width - border-right-width */	bottom:auto;    left:auto;	border-width:15px 0 0 40px; /* vary these values to change the angle of the vertex */	border-color:transparent #075698 ; }.triangle-obtuse {	position:relative;	padding:15px;	margin:1em 0 3em;	color:#fff;	background:#c81e2b;	/* css3 */	background:-webkit-gradient(linear, 0 0, 0 100%, from(#f04349), to(#c81e2b));	background:-moz-linear-gradient(#f04349, #c81e2b);	background:-o-linear-gradient(#f04349, #c81e2b);	background:linear-gradient(#f04349, #c81e2b);	-webkit-border-radius:10px;	-moz-border-radius:10px;	border-radius:10px;}.triangle-obtuse.top {	background:-webkit-gradient(linear, 0 0, 0 100%, from(#c81e2b), to(#f04349));	background:-moz-linear-gradient(#c81e2b, #f04349);	background:-o-linear-gradient(#c81e2b, #f04349);	background:linear-gradient(#c81e2b, #f04349);}.triangle-obtuse.left {	margin-left:50px;	background:#c81e2b;}.triangle-obtuse.right {	margin-right:50px;	background:#c81e2b;}.triangle-obtuse:before {	content:"";	position:absolute;	bottom:-20px; /* value = - border-top-width - border-bottom-width */	left:60px; /* controls horizontal position */	border:0;	border-right-width:30px; /* vary this value to change the angle of the vertex */	border-bottom-width:20px; /* vary this value to change the height of the triangle. must be equal to the corresponding value in :after */	border-style:solid;	border-color:transparent #c81e2b;    /* reduce the damage in FF3.0 */    display:block;     width:0;}.triangle-obtuse:after {	content:"";	position:absolute;	bottom:-20px; /* value = - border-top-width - border-bottom-width */	left:80px; /* value = (:before's left) + (:before's border-right/left-width)  - (:after's border-right/left-width) */	border:0;	border-right-width:10px; /* vary this value to change the angle of the vertex */	border-bottom-width:20px; /* vary this value to change the height of the triangle. must be equal to the corresponding value in :before */	border-style:solid;	border-color:transparent #fff;    /* reduce the damage in FF3.0 */    display:block;     width:0;}.triangle-obtuse.top:before {	top:-20px; /* value = - border-top-width - border-bottom-width */	bottom:auto;	left:auto;	right:60px; /* controls horizontal position */	border:0;	border-left-width:30px; /* vary this value to change the width of the triangle */	border-top-width:20px; 	border-color:transparent #c81e2b;}.triangle-obtuse.top:after {	top:-20px; /* value = - border-top-width - border-bottom-width */	bottom:auto;	left:auto;	right:80px; /* value = (:before's right) + (:before's border-right/left-width)  - (:after's border-right/left-width) */	border-width:0;	border-left-width:10px;	border-top-width:20px; 	border-color:transparent #fff;}.triangle-obtuse.left:before {	top:15px; /* controls vertical position */	bottom:auto;	left:-50px; 	border:0;	border-bottom-width:30px;	border-left-width:50px;	border-color:#c81e2b transparent;}.triangle-obtuse.left:after {	top:35px;	bottom:auto;	left:-50px;	border:0;	border-bottom-width:10px;	border-left-width:50px;	border-color:#fff transparent;}.triangle-obtuse.right:before {	top:15px;	bottom:auto;    left:auto;	right:-50px;	border:0;	border-bottom-width:30px; /* vary this value to change the height of the triangle */	border-right-width:50px;	border-color:#c81e2b transparent;}.triangle-obtuse.right:after {	top:35px; 	bottom:auto;	right:-50px; /* value = - border-left-width - border-right-width */    left:auto;	border:0;	border-bottom-width:10px; /* vary this value to change the height of the triangle */	border-right-width:50px;	border-color:#fff transparent;}.triangle-border {	position:relative;	padding:15px;	margin:1em 0 3em;	border:5px solid #5a8f00;	color:#333;	background:#fff;	/* css3 */	-webkit-border-radius:10px;	-moz-border-radius:10px;	border-radius:10px;}.triangle-border.left {	margin-left:30px;}.triangle-border.right {	margin-right:30px;}.triangle-border:before {	content:"";	position:absolute;	bottom:-20px; /* value = - border-top-width - border-bottom-width */	left:40px; /* controls horizontal position */    border-width:20px 20px 0;	border-style:solid;    border-color:#5a8f00 transparent;    display:block;     width:0;}/* creates the smaller  triangle */.triangle-border:after {	content:"";	position:absolute;	bottom:-13px; /* value = - border-top-width - border-bottom-width */	left:47px; 	border-width:13px 13px 0;	border-style:solid;	border-color:#fff transparent;    display:block;     width:0;}.triangle-border.top:before {	top:-20px; /* value = - border-top-width - border-bottom-width */	bottom:auto;	left:auto;	right:40px; /* controls horizontal position */    border-width:0 20px 20px;}/* creates the smaller  triangle */.triangle-border.top:after {	top:-13px; /* value = - border-top-width - border-bottom-width */	bottom:auto;	left:auto;	right:47px; /* value = (:before right) + (:before border-right) - (:after border-right) */    border-width:0 13px 13px;}.triangle-border.left:before {	top:10px; /* controls vertical position */	bottom:auto;	left:-30px; /* value = - border-left-width - border-right-width */	border-width:15px 30px 15px 0;	border-color:transparent #5a8f00;}/* creates the smaller  triangle */.triangle-border.left:after {	top:16px; /* value = (:before top) + (:before border-top) - (:after border-top) */	bottom:auto;	left:-21px; /* value = - border-left-width - border-right-width */	border-width:9px 21px 9px 0;	border-color:transparent #fff;}/* creates the larger triangle */.triangle-border.right:before {	top:10px; /* controls vertical position */	bottom:auto;    left:auto;	right:-30px; /* value = - border-left-width - border-right-width */	border-width:15px 0 15px 30px;	border-color:transparent #5a8f00;}/* creates the smaller  triangle */.triangle-border.right:after {	top:16px; /* value = (:before top) + (:before border-top) - (:after border-top) */	bottom:auto;    left:auto;	right:-21px; /* value = - border-left-width - border-right-width */	border-width:9px 0 9px 21px;	border-color:transparent #fff;}.example-commentheading:before {	content:"";	position:absolute;	top:9px;	left:-25px;	width:15px;	height:10px;	background:#b513af;	/* css3 */	-webkit-border-radius:3px;	-moz-border-radius:3px;	border-radius:3px;}/* creates the triangle */.example-commentheading:after {	content:"";	position:absolute;	top:15px;	left:-19px;	border:4px solid transparent;	border-left-color:#b513af;    /* reduce the damage in FF3.0 */    display:block;     width:0;}.example-right {	position:relative;	padding:15px 30px;	margin:0;	color:#fff;	background:#5a8f00; /* default background for browsers without gradient support */	/* css3 */	background:-webkit-gradient(linear, 0 0, 0 100%, from(#b8db29), to(#5a8f00));	background:-moz-linear-gradient(#b8db29, #5a8f00);	background:-o-linear-gradient(#b8db29, #5a8f00);	background:linear-gradient(#b8db29, #5a8f00);	-webkit-border-radius:10px;	-moz-border-radius:10px;	border-radius:10px;}.example-right + p {margin:15px 0 2em 85px; font-style:italic;}.example-right:after {	content:"";	position:absolute;	bottom:-50px;	left:50px;	border-width:0 20px 50px 0px;	border-style:solid;	border-color:transparent #5a8f00;    /* reduce the damage in FF3.0 */    display:block;     width:0;}.example-obtuse {	position:relative;	padding:15px 30px;	margin:0;	color:#000;	background:#f3961c; /* default background for browsers without gradient support */	/* css3 */    background:-webkit-gradient(linear, 0 0, 0 100%, from(#f9d835), to(#f3961c));	background:-moz-linear-gradient(#f9d835, #f3961c);	background:-o-linear-gradient(#f9d835, #f3961c);	background:linear-gradient(#f9d835, #f3961c);	/* Using longhand to avoid inconsistencies between Safari 4 and Chrome 4 */	-webkit-border-top-left-radius:25px 50px;	-webkit-border-top-right-radius:25px 50px;	-webkit-border-bottom-right-radius:25px 50px;	-webkit-border-bottom-left-radius:25px 50px;	-moz-border-radius:25px / 50px;	border-radius:25px / 50px;}.example-obtuse + p {margin:10px 150px 2em 0; text-align:right; font-style:italic;}.example-obtuse:before {	content:"";	position:absolute;	bottom:-30px;	right:80px;	border-width:0 0 30px 50px;	border-style:solid;	border-color:transparent #f3961c;    /* reduce the damage in FF3.0 */    display:block;     width:0;}/* creates the smaller triangle */.example-obtuse:after {	content:"";	position:absolute;	bottom:-30px;	right:110px; 	border-width:0 0 30px 20px;	border-style:solid;	border-color:transparent #fff;    /* reduce the damage in FF3.0 */    display:block;     width:0;}.example-twitter {	position:relative;	padding:15px;	margin:100px 0 0.5em;	color:#333;	background:#eee;	/* css3 */	-webkit-border-radius:10px;	-moz-border-radius:10px;	border-radius:10px;}.example-twitter p {font-size:28px; line-height:1.25em;}.example-twitter:before {	content:url(twitter-logo.gif);	position:absolute;	top:-60px;	left:0;	width:155px;	height:36px;    /* reduce the damage in FF3.0 */    display:block; }.example-twitter:after {	content:"";	position:absolute;	top:-30px;	left:50px;	border:15px solid transparent;	border-bottom-color:#eee;    /* reduce the damage in FF3.0 */    display:block;     width:0;}.example-twitter + p {padding-left:15px; font:14px Arial, sans-serif;}.example-number {	position:relative;	width:200px;	height:200px;	margin:50px 0 200px;	text-align:center;	font:140px/200px Arial, sans-serif;	color:#fff;	background:#C91F2C;}.example-number:before {	content:"";	position:absolute;	bottom:-140px;	right:0;	border-width:0 0 140px 140px;	border-style:solid;	border-color:transparent #C91F2C;}.example-number:after {	content:"";	position:absolute;	bottom:-140px;	right:85px; 	border-width:0 0 140px 55px;	border-style:solid;	border-color:transparent #fff;}.pinched {	position:relative;	padding:15px;	margin:50px 0 3em;	text-align:center;	color:#fff;	background:#333; 	/* css3 */	-webkit-border-radius:10px;	-moz-border-radius:10px;	border-radius:10px;}.pinched:before {	content:"";	position:absolute;	top:-20px;	left:50%;	width:100px;	height:20px;	margin:0 0 0 -50px;	background:#333;}.pinched:after {	content:"";	position:absolute;	top:-20px;	left:0;	width:50%;	height:20px;	background:#fff;	/* css3 */	-webkit-border-bottom-right-radius:15px;	-moz-border-radius-bottomright:15px;	border-bottom-right-radius:15px;}.pinched > :first-child:before {	content:""; 	position:absolute; 	top:-20px; 	right:0; 	width:50%; 	height:20px; 	background:#fff;	/* css3 */	-webkit-border-bottom-left-radius:15px;	-moz-border-radius-bottomleft:15px;	border-bottom-left-radius:15px;}.oval-speech {	position:relative;	width:270px;	padding:50px 40px;	margin:1em auto 50px;	text-align:center;	color:#fff; 	background:#5a8f00;	/* css3 */	background:-webkit-gradient(linear, 0 0, 0 100%, from(#b8db29), to(#5a8f00));	background:-moz-linear-gradient(#b8db29, #5a8f00);	background:-o-linear-gradient(#b8db29, #5a8f00);	background:linear-gradient(#b8db29, #5a8f00);	-webkit-border-top-left-radius:220px 120px;	-webkit-border-top-right-radius:220px 120px;	-webkit-border-bottom-right-radius:220px 120px;	-webkit-border-bottom-left-radius:220px 120px;	-moz-border-radius:220px / 120px;	border-radius:220px / 120px;}.oval-speech p {font-size:1.25em;}.oval-speech:before {	content:"";	position:absolute;	z-index:-1;	bottom:-30px;	right:50%;	height:30px;	border-right:60px solid #5a8f00;	background:#5a8f00; /* need this for webkit - bug in handling of border-radius */	/* css3 */	-webkit-border-bottom-right-radius:80px 50px;	-moz-border-radius-bottomright:80px 50px;	border-bottom-right-radius:80px 50px;	/* using translate to avoid undesired appearance in CSS2.1-capabable but CSS3-incapable browsers */	-webkit-transform:translate(0, -2px);	-moz-transform:translate(0, -2px);	-ms-transform:translate(0, -2px);	-o-transform:translate(0, -2px);	transform:translate(0, -2px);}/* creates part of the curved pointy bit */.oval-speech:after {	content:"";	position:absolute;	z-index:-1;	bottom:-30px;	right:50%;	width:60px;	height:30px;	background:#fff;	/* css3 */	-webkit-border-bottom-right-radius:40px 50px; 	-moz-border-radius-bottomright:40px 50px; 	border-bottom-right-radius:40px 50px; 	/* using translate to avoid undesired appearance in CSS2.1-capabable but CSS3-incapable browsers */	-webkit-transform:translate(-30px, -2px);	-moz-transform:translate(-30px, -2px);	-ms-transform:translate(-30px, -2px);	-o-transform:translate(-30px, -2px);	transform:translate(-30px, -2px);}.oval-thought {	position:relative;	width:270px;	padding:50px 40px;	margin:1em auto 80px;	text-align:center;	color:#fff; 	background:#075698;	/* css3 */	background:-webkit-gradient(linear, 0 0, 0 100%, from(#2e88c4), to(#075698));	background:-moz-linear-gradient(#2e88c4, #075698);	background:-o-linear-gradient(#2e88c4, #075698);	background:linear-gradient(#2e88c4, #075698);	/*	NOTES:	-webkit-border-radius:220px 120px; // produces oval in safari 4 and chrome 4	-webkit-border-radius:220px / 120px; // produces oval in chrome 4 (again!) but not supported in safari 4	Not correct application of the current spec, therefore, using longhand to avoid future problems with webkit corrects this	*/	-webkit-border-top-left-radius:220px 120px;	-webkit-border-top-right-radius:220px 120px;	-webkit-border-bottom-right-radius:220px 120px;	-webkit-border-bottom-left-radius:220px 120px;	-moz-border-radius:220px / 120px;	border-radius:220px / 120px;}.oval-thought p {font-size:1.25em;}/* creates the larger circle */.oval-thought:before {	content:"";	position:absolute;	bottom:-20px;	left:50px;	width:30px;	height:30px;	background:#075698;	/* css3 */	-webkit-border-radius:30px;	-moz-border-radius:30px;	border-radius:30px;}/* creates the smaller circle */.oval-thought:after {	content:"";	position:absolute;	bottom:-30px;	left:30px;	width:15px;	height:15px;	background:#075698;	/* css3 */	-webkit-border-radius:15px;	-moz-border-radius:15px;	border-radius:15px;}.oval-quotes {	position:relative;	width:400px;	height:350px;	margin:2em auto 10px;	color:#000;	background:#ffed26;	/* css3 */	/*	NOTES:	-webkit-border-radius:Apx Bpx; // produces oval in safari 4 and chrome 4	-webkit-border-radius:Apx / Bpx; // produces oval in chrome 4 (again!) but not supported in safari 4	Not correct application of the current spec, therefore, using longhand to avoid future problems with webkit corrects this	*/	-webkit-border-top-left-radius:400px 350px;	-webkit-border-top-right-radius:400px 350px;	-webkit-border-bottom-right-radius:400px 350px;	-webkit-border-bottom-left-radius:400px 350px;	-moz-border-radius:400px / 350px;	border-radius:400px / 350px;}/* creates opening quotation mark */.oval-quotes:before {	content:"/201C"; 	position:absolute; 	z-index:1; 	top:20px; 	left:20px; 	font:80px/1 Georgia, serif;	color:#ffed26;}/* creates closing quotation mark */.oval-quotes:after {	content:"/201D"; 	position:absolute; 	z-index:1; 	bottom:0; 	right:20px; 	font:80px/0.25 Georgia, serif;	color:#ffed26;}.oval-quotes p {	width:250px;	height:250px;	padding:50px 0 0;	margin:0 auto;	text-align:center;	font-size:35px;}/* creates smaller curve */.oval-quotes p:before {	content:"";	position:absolute;	z-index:-1;	bottom:-30px;	right:55%;	width:180px; /* wider than necessary to make it look a bit better in IE8 */	height:60px;	background:#fff; /* need this for webkit - bug in handling of border-radius */	/* css3 */	-webkit-border-bottom-right-radius:40px 50px; 	-moz-border-radius-bottomright:40px 50px; 	border-bottom-right-radius:40px 50px; 	/* using translate to avoid undesired appearance in CSS2.1-capabable but CSS3-incapable browsers */	-webkit-transform:translate(-30px, -2px);	-moz-transform:translate(-30px, -2px);	-ms-transform:translate(-30px, -2px);	-o-transform:translate(-30px, -2px);	transform:translate(-30px, -2px);}/* creates larger curve */.oval-quotes p:after {	content:"";	position:absolute;	z-index:-2;	bottom:-30px;	right:25%;	height:80px;	border-right:200px solid #ffed26;	background:#ffed26; /* need this for webkit - bug in handling of border-radius */	/* css3 */	-webkit-border-bottom-right-radius:200px 100px;	-moz-border-radius-bottomright:200px 100px;	border-bottom-right-radius:200px 100px;	/* using translate to avoid undesired appearance in CSS2.1-capabable but CSS3-incapable browsers */	-webkit-transform:translate(0, -2px);	-moz-transform:translate(0, -2px);	-ms-transform:translate(0, -2px);	-o-transform:translate(0, -2px);	transform:translate(0, -2px);    /* reduce the damage in FF3.0 */    display:block;     width:0;}.oval-quotes + p {	position:relative; /* part of the IE8 width compromise */	width:150px;	margin:0 0 2em;	font-size:18px;	font-weight:bold;}.rectangle-speech-border {	position:relative; 	padding:50px 15px; 	margin:1em 0 3em;	border:10px solid #5a8f00; 	text-align:center; 	color:#333;	background:#fff; 	/* css3 */	-webkit-border-radius:20px;	-moz-border-radius:20px;	border-radius:20px;}/* creates larger curve */.rectangle-speech-border:before {	content:""; 	position:absolute; 	z-index:10; 	bottom:-40px; 	left:50px; 	width:50px; 	height:30px;	border-style:solid; 	border-width:0 10px 10px 0; 	border-color:#5a8f00; 	background:transparent;	/* css3 */	-webkit-border-bottom-right-radius:80px 50px;	-moz-border-radius-bottomright:80px 50px;	border-bottom-right-radius:80px 50px;    /* reduce the damage in FF3.0 */    display:block; }/* creates smaller curve */.rectangle-speech-border:after {	content:""; 	position:absolute; 	z-index:10; 	bottom:-40px; 	left:50px; 	width:20px; 	height:30px; 	border-style:solid; 	border-width:0 10px 10px 0; 	border-color:#5a8f00; 	background:transparent;	/* css3 */	-webkit-border-bottom-right-radius:40px 50px; 	-moz-border-radius-bottomright:40px 50px; 	border-bottom-right-radius:40px 50px;     /* reduce the damage in FF3.0 */    display:block; }/* creates a small circle to produce a rounded point where the two curves meet */.rectangle-speech-border > :first-child:before {	content:""; 	position:absolute; 	bottom:-40px; 	left:45px; 	width:10px; 	height:10px;	background:#5a8f00;	/* css3 */	-webkit-border-radius:10px;	-moz-border-radius:10px;	border-radius:10px;}/* creates a white rectangle to cover part of the oval border*/.rectangle-speech-border > :first-child:after {	content:""; 	position:absolute; 	bottom:-10px; 	left:76px; 	width:24px; 	height:15px; 	background:#fff;}.oval-speech-border {	position:relative; 	padding:70px 30px;	margin:1em auto 60px;	border:10px solid #f3961c; 	text-align:center;	color:#333; 	background:#fff;	/* css3 */	/*	NOTES:	-webkit-border-radius:240px 140px; // produces oval in safari 4 and chrome 4	-webkit-border-radius:240px / 140px; // produces oval in chrome 4 (again!) but not supported in safari 4	Not correct application of the current spec, therefore, using longhand to avoid future problems with webkit corrects this	*/	-webkit-border-top-left-radius:240px 140px;	-webkit-border-top-right-radius:240px 140px;	-webkit-border-bottom-right-radius:240px 140px;	-webkit-border-bottom-left-radius:240px 140px;	-moz-border-radius:240px / 140px;	border-radius:240px / 140px;}/* creates larger curve */.oval-speech-border:before {	content:""; 	position:absolute; 	z-index:2; 	bottom:-40px; 	right:50%; 	width:50px; 	height:30px;	border-style:solid;	border-width:0 10px 10px 0;	border-color:#f3961c;	margin-right:-10px;	background:transparent;	/* css3 */	-webkit-border-bottom-right-radius:80px 50px;	-moz-border-radius-bottomright:80px 50px;	border-bottom-right-radius:80px 50px;    /* reduce the damage in FF3.0 */    display:block; }/* creates smaller curve */.oval-speech-border:after {	content:""; 	position:absolute; 	z-index:2; 	bottom:-40px; 	right:50%; 	width:20px; 	height:31px; 	border-style:solid;	border-width:0 10px 10px 0;	border-color:#f3961c;	margin-right:20px;	background:transparent;	/* css3 */	-webkit-border-bottom-right-radius:40px 50px; 	-moz-border-radius-bottomright:40px 50px; 	border-bottom-right-radius:40px 50px;     /* reduce the damage in FF3.0 */    display:block; }/* creates a small circle to produce a rounded point where the two curves meet */.oval-speech-border > :first-child:before {	content:""; 	position:absolute; 	z-index:1; 	bottom:-40px; 	right:50%; 	width:10px; 	height:10px;	margin-right:45px;	background:#f3961c;	/* css3 */	-webkit-border-radius:10px;	-moz-border-radius:10px;	border-radius:10px;}/* creates a white rectangle to cover part of the oval border*/.oval-speech-border > :first-child:after {	content:""; 	position:absolute; 	z-index:1; 	bottom:-10px; 	right:50%; 	width:30px; 	height:15px; 	background:#fff;}.oval-thought-border {	position:relative; 	padding:70px 30px;	margin:1em auto 80px;	border:10px solid #c81e2b; 	text-align:center;	color:#333; 	background:#fff;	/* css3 */	/*	NOTES:	-webkit-border-radius:240px 140px; // produces oval in safari 4 and chrome 4	-webkit-border-radius:240px / 140px; // produces oval in chrome 4 (again!) but not supported in safari 4	Not correct application of the current spec, therefore, using longhand to avoid future problems with webkit corrects this	*/	-webkit-border-top-left-radius:240px 140px;	-webkit-border-top-right-radius:240px 140px;	-webkit-border-bottom-right-radius:240px 140px;	-webkit-border-bottom-left-radius:240px 140px;	-moz-border-radius:240px / 140px;	border-radius:240px / 140px;}/* creates the larger circle */.oval-thought-border:before {	content:""; 	position:absolute; 	z-index:10; 	bottom:-40px; 	right:100px; 	width:50px; 	height:50px;	border:10px solid #c81e2b;	background:#fff;	/* css3 */	-webkit-border-radius:50px;	-moz-border-radius:50px;	border-radius:50px;    /* reduce the damage in FF3.0 */    display:block; }/* creates the smaller circle */.oval-thought-border:after {	content:""; 	position:absolute; 	z-index:10; 	bottom:-60px; 	right:50px; 	width:25px; 	height:25px; 	border:10px solid #c81e2b;	background:#fff;	/* css3 */	-webkit-border-radius:25px;	-moz-border-radius:25px;	border-radius:25px;    /* reduce the damage in FF3.0 */    display:block; }    </style>	<script>			var _gaq = _gaq || []; 	_gaq.push(['_setAccount', 'UA-7489188-1']); _gaq.push(['_trackPageview']);		(function() {			var ga = document.createElement('script'); ga.async = true; ga.src = 'http://www.google-analytics.com/ga.js';			var s = document.getElementsByTagName('script')[0];			s.parentNode.insertBefore(ga, s);		})();	</script></head><body>	<div id="container">		<div class="content"> 			<p class="triangle-isosceles">This only needs one HTML element.</p>			<p class="triangle-isosceles top">For example, <code><p>[text]</p></code>.</p>			<p class="triangle-isosceles left">But it could be any element you want.</p>			<p class="triangle-isosceles right">The entire appearance is created only with CSS.</p>			<p class="triangle-right">This only needs one HTML element.</p>			<p class="triangle-right top">For example, <code><p>[text]</p></code>.</p>			<p class="triangle-right left">But it could be any element you want.</p>			<p class="triangle-right right">The entire appearance is created only with CSS.</p>			<p class="triangle-obtuse">This only needs one HTML element.</p>			<p class="triangle-obtuse top">For example, <code><p>[text]</p></code>.</p>			<p class="triangle-obtuse left">But it could be any element you want.</p>			<p class="triangle-obtuse right">The entire appearance is created only with CSS.</p>			<p class="triangle-border">This only needs one HTML element.</p>			<p class="triangle-border top">For example, <code><p>[text]</p></code>.</p>			<p class="triangle-border left">But it could be any element you want.</p>			<p class="triangle-border right">The entire appearance is created only with CSS.</p>			<h2>Simple examples</h2>			<h3 class="example-commentheading">125 comments</h3>			<blockquote class="example-right">				<p>Design is directed toward human beings. To design is to solve human problems by identifying them and executing the best solution.</p>			</blockquote>			<p>Ivan Chermayeff</p>			<blockquote class="example-obtuse">				<p>It’s not what you look at that matters, it’s what you see.</p>			</blockquote>			<p>Henry David Thoreau</p>			<blockquote class="example-twitter" cite="http://twitter.com/necolas/status/9880187933">				<p>Takes me longer to write up blog posts on experiments or projects than to create them in the first place.</p>			</blockquote>			<p><a href="http://twitter.com/necolas">@necolas</a> at <a href="http://twitter.com/necolas/status/9880187933">4:05 PM March 2nd 2010</a></p>			<div class="example-number">57</div>			<h2>More complex CSS3 examples</h2>			<p>Some more experimental speech bubbles that try to limit the damage in browsers lacking the necessary CSS3 support.</p>			<div class="pinched">				<p><strong>It doesn’t matter what the first child element of this div is</strong>...but it does need a child element.</p>			</div>			<blockquote class="oval-speech">				<p>This is a blockquote that is styled to look like a speech bubble</p>			</blockquote>			<blockquote class="oval-thought">				<p>This is a blockquote that is styled to look like a thought bubble</p>			</blockquote>			<blockquote class="oval-quotes">				<p>No, Donny, these men are nihilists, there’s nothing to be afraid of.</p>			</blockquote>			<p>Walter Sobchak</p>			<blockquote class="rectangle-speech-border">				<p>This is a blockquote that is styled to look like a speech bubble</p>			</blockquote>			<blockquote class="oval-speech-border">				<p>This is a blockquote that is styled to look like a speech bubble</p>			</blockquote>			<blockquote class="oval-thought-border">				<p>This is a blockquote that is styled to look like a thought bubble</p>			</blockquote>		</div>	</div></body></html>

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