我只是建立网站一切运作良好,但当我尝试申请:之前或:在一些元素的伪元素之后,所以小泡沫应该在大的背后,它不知何故不起作用,不知道这是为什么。
.bubble {
position: relative;
display: table-cell;
vertical-align: middle;
width: 135px;
height: 135px;
background-color: #666;
-webkit-border-radius: 75px;
-moz-border-radius: 75px;
-o-border-radius: 75px;
-ms-border-radius: 75px;
border-radius: 75px;
-moz-box-shadow: 0 0 50px 0 rgba(236, 3, 91, 0.20);
-webkit-box-shadow: 0 0 50px 0 rgba(236, 3, 91, 0.20);
box-shadow: 0 0 50px 0 rgba(236, 3, 91, 0.20);
z-index: 10;
}
.bubble.black:before {
top: 0;
left: 0;
content: "";
position: absolute;
width: 80px;
height: 80px;
background-color: #000;
-webkit-border-radius: 75px;
-moz-border-radius: 75px;
-o-border-radius: 75px;
-ms-border-radius: 75px;
border-radius: 75px;
-moz-box-shadow: 0 0 50px 0 rgba(236, 3, 91, 0.20);
-webkit-box-shadow: 0 0 50px 0 rgba(236, 3, 91, 0.20);
box-shadow: 0 0 50px 0 rgba(236, 3, 91, 0.20);
z-index: 1;
}

<div class="bubble black"></div>
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答案 0 :(得分:3)
您可以从父级删除z-index
并在伪元素
z-index: -1
.bubble {
position: relative;
width: 135px;
height: 135px;
background-color: #666;
border-radius: 75px;
box-shadow: 0 0 50px 0 rgba(236, 3, 91, 0.20);
}
.bubble.black:before {
top: 0;
left: 0;
content: "";
position: absolute;
width: 80px;
height: 80px;
background-color: #000;
border-radius: 75px;
box-shadow: 0 0 50px 0 rgba(236, 3, 91, 0.20);
z-index: -1;
}
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<div class="bubble black"></div>
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