Question

我在父div上使用div叠加，并希望将另一个div放在叠加的中间。这就像我来的那样接近：

＆＃13;

.parent { 
        width: 400px; 
}

#aoa55a92 { 
        background: rgba(0,0,0,0.8); 
}

.aoa_wrap {
        position: relative;
        z-index:999;
}

.aoa_overlay {
        display: block;
        width: 100%;
        height: 100%;
        position: absolute;
        top:0;
        left:0;
        background: rgba(0,0,0,0.8);
        z-index:9999;
        color:#fff;
        overflow:hidden;
}

.aoa_object {
        display: inline-block;
        width:100%;
        text-align:center;
        vertical-align:middle;
        overflow:hidden;
        margin: 0 auto;
}

＆＃13;

<html><body>


<div class='parent'>

<div class="aoa_wrap">
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
    <div id="aoa55a92" class="aoa_overlay">
        <div class="aoa_object">I want this in center</div>
    </div>
</div>

</div>


</body>
</html>

＆＃13;

有人能指出我正确的方向吗？

Answer 1

只需添加：

position: relative;
top: 50%;
-webkit-transform: translateY(-50%);
transform: translateY(-50%);

到.aoa_object课程会将其垂直居中。

＆＃13;

.parent { 
        width: 400px; 
}

#aoa55a92 { 
        background: rgba(0,0,0,0.8); 
}

.aoa_wrap {
        position: relative;
        z-index:999;
}

.aoa_overlay {
        display: block;
        width: 100%;
        height: 100%;
        position: absolute;
        top:0;
        left:0;
        background: rgba(0,0,0,0.8);
        z-index:9999;
        color:#fff;
        overflow:hidden;
}

.aoa_object {
        display: inline-block;
        width:100%;
        text-align:center;
        vertical-align:middle;
        overflow:hidden;
        margin: 0 auto;
        position: relative;
        top: 50%;
        -webkit-transform: translateY(-50%);
        transform: translateY(-50%);
}

＆＃13;

<div class='parent'>

<div class="aoa_wrap">
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
    <div id="aoa55a92" class="aoa_overlay">
        <div class="aoa_object">I want this in center</div>
    </div>
</div>

</div>

＆＃13;

使用css在父div上覆盖中心div元素？

1 个答案: