BODY 标签的背景会扩展以适应侧边栏,但#wrap
元素的背景不会。为什么?
HTML:
<div id="wrap">
<div id="side"> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> </div>
</div>
CSS:
body{
background: #333;
}
#wrap{
position: relative;
background: #cc4;
}
#side{
position: absolute;
top: 0;
left: 0;
}