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qq_大寒_2
TA貢獻(xiàn)173條經(jīng)驗(yàn) 獲得超185個(gè)贊
所有這類問(wèn)題,自己寫寫div就會(huì)很容易明白的,
.box1{width:300px;height:300px;background:red;margin-bottom:100px;} .box2{width:300px;height:300px;background:green;margin-top:-50px;opacity:0.5;filter:alpha(opacity=50);}
不會(huì)
.box1{width:300px;height:300px;background:red;} .box2{width:300px;height:300px;background:green;margin-top:-50px;opacity:0.5;filter:alpha(opacity=50);}
會(huì)
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