使用CSS3仿微信聊天小气泡的实例介绍

现在就教大家怎么用css3制作一个和微信聊天界面一样的页面。

首先给大家看看页面的样子吧，如下图所示：

小月博客仿微信聊天界面

页面大致就是这个样子，接下来我们来一起学习制作步骤吧。

第一部分： HTML

<div class="leftd">
 <span ng-class="leftd_h">
 <img ng-src="./img/c_pic.pn" />
 </span>
 <div class="speech left" ng-class="speech left"> 
 二货，你看你傻样！
 </div>
</div>
<div class="rightd">
 <span ng-class="rightd_h">
 <img ng-src="./img/u_pic.pn" />
 </span>
 <div class="speech right" ng-class="speech left"> 
 嘻嘻嘻嘻。。。
 </div>
</div>
<div class="leftd">
 <span ng-class="leftd_h">
 <img ng-src="./img/c_pic.pn" />
 </span>
 <div class="speech left" ng-class="speech left"> 
 笑什么笑，没看到本宝宝今天变漂亮了吗？
 </div>
</div>
<div class="rightd">
 <span ng-class="rightd_h">
 <img ng-src="./img/u_pic.pn" />
 </span>
 <div class="speech right" ng-class="speech left"> 
 不不不，每天你都很漂亮的啦！
 </div>
</div>

第二部分： CSS3

PS（这里也算是最重要的部分了我就把全部的代码都展示出来吧！）

/* 微信气泡 */
div.speech {
 float: left;
 margin: 10px 0;
 padding: 8px;
 table-layout: fixed;
 word-break: break-all;
 position: relative;
 background: -webkit-gradient( linear, 50% 0%, 50% 100%, from(#ffffff), color-stop(0.1, #ececec), color-stop(0.5, #dbdbdb), color-stop(0.9, #dcdcdc), to(#8c8c8c) );
 border: 1px solid #989898;
 border-radius: 8px;
}
div.speech:before {
 content: '';
 position: absolute;
 width: 0;
 height: 0;
 left: 15px;
 top: -20px;
 border: 10px solid;
 border-color: transparent transparent #989898 transparent;
}
div.speech:after {
 content: '';
 position: absolute;
 width: 0;
 height: 0;
 left: 17px;
 top: -16px;
 border: 8px solid;
 border-color: transparent transparent #ffffff transparent;
}
div.speech.right {
 display: inline-block;
 box-shadow: -2px 2px 5px #CCC;
 margin-right: 10px;
 max-width: 75%;
 float: right;
 background: -webkit-gradient( linear, 50% 0%, 50% 100%, from(#e4ffa7), color-stop(0.1, #bced50), color-stop(0.4, #aed943), color-stop(0.8, #a7d143), to(#99BF40) );
}
div.speech.right:before {
 content: '';
 position: absolute;
 width: 0;
 height: 0;
 top: 9px;
 bottom: auto;
 left: auto;
 right: -10px;
 border-width: 9px 0 9px 10px;
 border-color: transparent #989898;
}
div.speech.right:after {
 content: '';
 position: absolute;
 width: 0;
 height: 0;
 top: 10px;
 bottom: auto;
 left: auto;
 right: -8px;
 border-width: 8px 0 8px 9px;
 border-color: transparent #bced50;
}
div .left {
 display: inline-block;
 box-shadow: 2px 2px 2px #CCCCCC;
 margin-left: 10px;
 max-width: 75%;
 position: relative;
 background: -webkit-gradient( linear, 50% 0%, 50% 100%, from(#ffffff), color-stop(0.1, #eae8e8), color-stop(0.4, #E3E3E3), color-stop(0.8, #DFDFDF), to(#D9D9D9) );
}
div .left:before {
 content: '';
 position: absolute;
 width: 0;
 height: 0;
 top: 9px;
 bottom: auto;
 left: -10px;
 border-width: 9px 10px 9px 0;
 border-color: transparent #989898;
}
div .left:after {
 content: '';
 position: absolute;
 width: 0;
 height: 0;
 top: 10px;
 bottom: auto;
 left: -8px;
 border-width: 8px 9px 8px 0;
 border-color: transparent #eae8e8;
}
.leftimg {
 float: left;
 margin-top: 10px;
}
.rightimg {
 float: right;
 margin-top: 10px;
}
.leftd {
 clear: both;
 float: left;
 margin-left: 10px;
}
.rightd {
 clear: both;
 float: right;
 margin-right: 10px;
}

.leftd_h{
 width: 39px;
 height: 39px;
 border-radius: 100%;
 display: block;
 float: left;
 overflow: hidden;
}

.leftd_h img{
 display: block;
 width: 100%;
 height: auto;
}
.rightd_h{
 width: 39px;
 height: 39px;
 border-radius: 100%;
 display: block;
 float: right;
 overflow: hidden;
}

.rightd_h img{
 display: block;
 width: 100%;
 height: auto;
}

这里基本是上用了CSS伪类元素，来制作的小气泡。网上有很多的案例都是吧用户聊天的头像作为背景图，但是我感觉这样子在实际项目中，并不是很合适，所以我就做了一些修改，然我们更加实用。