2013-02-01 16:59:29 +08:00

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CSS
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/* ------------------------------------------
PURE CSS SPEECH BUBBLES
by Nicolas Gallagher
- http://nicolasgallagher.com/pure-css-speech-bubbles/
http://nicolasgallagher.com
http://twitter.com/necolas
Created: 02 March 2010
Version: 1.2 (03 March 2011)
Dual licensed under MIT and GNU GPLv2 <20> Nicolas Gallagher
------------------------------------------ */
/* NOTE: Some declarations use longhand notation so that it can be clearly
explained what specific properties or values do and what their relationship
is to other properties or values in creating the effect */
/* ============================================================================================================================
== GENERAL STYLES
** ============================================================================================================================ */
/* ============================================================================================================================
== BUBBLE WITH A BORDER AND TRIANGLE
** ============================================================================================================================ */
/* THE SPEECH BUBBLE
------------------------------------------------------------------------------------------------------------------------------- */
.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;
}
/* Variant : for left positioned triangle
------------------------------------------ */
.triangle-border.left {
margin-left:30px;
}
/* Variant : for right positioned triangle
------------------------------------------ */
.triangle-border.right {
margin-right:30px;
}
/* THE TRIANGLE
------------------------------------------------------------------------------------------------------------------------------- */
.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;
/* reduce the damage in FF3.0 */
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; /* value = (:before left) + (:before border-left) - (:after border-left) */
border-width:13px 13px 0;
border-style:solid;
border-color:#fff transparent;
/* reduce the damage in FF3.0 */
display:block;
width:0;
}
/* Variant : left
------------------------------------------ */
/* creates the larger triangle */
.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;
}
/* Variant : right
------------------------------------------ */
/* 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 pink;
}
/* 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;
}