CSS-为什么百分比高度不工作?
heightwidth
<div id="working"></div><div id="not-working"></div>
#working{
width:80%;
height:140px;
background:orange;}#not-working{
width:80%;
height:30%;
background:green;}#working#not-working
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慕尼黑5688855
蓝山帝景