我想在div的左侧和右侧有一个箭头.像这里,但双方：
http://cssarrowplease.com/
那可能吗？
解决方法
在.arrow中添加一个额外的div,在其上添加：before和：after伪类. (注意：由于额外的边框,额外的div是必要的.边框是通过创建两个重叠的div来创建的：before和：after)
@H_301_8@.arrow_Box {
position: relative;
background: #88b7d5;
border: 4px solid #c2e1f5;
width: 200px;
}
.arrow_Box:after,.arrow_Box:before {
bottom: 100%;
border: solid transparent;
content: " ";
height: 0;
width: 0;
position: absolute;
}
.arrow_Box:after {
border-color: rgba(136,183,213,0);
border-bottom-color: #88b7d5;
border-width: 30px;
left: 50%;
margin-left: -30px;
}
.arrow_Box:before {
border-color: rgba(194,225,245,0);
border-bottom-color: #c2e1f5;
border-width: 36px;
left: 50%;
margin-left: -36px;
}
.arrow_Box > div:after,.arrow_Box > div:before {
top: 100%;
border: solid transparent;
content: "";
height: 0;
width: 0;
position: absolute;
}
.arrow_Box > div:after {
border-color: rgba(136,0);
border-top-color: #88b7d5;
border-width: 30px;
left: 50%;
margin-left: -30px;
}
.arrow_Box > div:before {
border-color: rgba(194,0);
border-top-color: #c2e1f5;
border-width: 36px;
left: 50%;
margin-left: -36px;
}
@H_301_8@<div class="arrow_Box">
<div>
bla!<br />
bla!<br />
bla!<br />
bla!<br />
bla!<br />
bla!<br />
</div>
</div>
一个demo.
