相邻div之间的阴影接缝 [英] Seams in shadows between adjacent divs

问题描述

相邻的元素通常看起来好像是融合的，它们之间没有线或接缝）。示例： http://jsfiddle.net/4m3L79w4/1/

但是，如果使用阴影，则不会出现这种情况。

Html：

 < div class =top>< / div> 
< div class =bottom>< / div> 
  

Css：

 code> DIV {
 background-color：＃7faf7f; 
 width：400px; 
 height：50px; 
 position：relative; 
 box-shadow：0px 5px 20px 5px＃000000; 
} 
 .top {
 z-index：2; 
} 
 .bottom {
 z-index：2; 
} 
  

bottom元素投影阴影在顶部两者都有相同的z-index。

JSFiddle： https ：//jsfiddle.net/b4fvb7e0/1/

是否可以使两个元素之间的阴影消失，以便看起来融合？

这实际上是我试图创建的一个标题的简化版本，在一些页面应该出现融合到下一个元素。 JSFiddle with the header standalone and with the following element： http://jsfiddle.net/c8oat7vo/3/

解决方案

在顶部和底部设置一个伪元素，并在此设置阴影。

此外，将伪元素的z-index设置为-1

固定z-索引问题感谢Jose Gomez

  DIV {background-color：＃7faf7f; width：400px; height：50px; position：relative;}。stack {background-color：＃7f7faf;宽度：80％;身高：60％;左：10％; top：20％; box-shadow：0px 5px 20px 5px＃000000; z-index：1;}。top {width：350px; margin-left：auto; margin-right：auto; z-index：auto; position：relative;}。bottom {width：100％; z-index：auto;}。top：after，.bottom：after {content：; position：absolute; top：0px; left：0px;右：0px; bottom：0px; box-shadow：0px 5px 20px 5px＃000000; z-index：-1;}  

 < div class =top> < div class =stack>< / div>< / div>< div class =bottom>< / div>   

Adjacent elements typically appear as if they were fused, with no lines or seams between them). Example: http://jsfiddle.net/4m3L79w4/1/

However, this does no longer appear to be the case if shadows are in use.

Html:

<div class="top"></div>
<div class="bottom"></div>

Css:

DIV {
    background-color: #7faf7f;
    width: 400px;
    height: 50px;
    position: relative;
    box-shadow: 0px 5px 20px 5px #000000;
}
.top {
    z-index: 2;
}
.bottom {
    z-index: 2;
}

The "bottom" element projects shadow over the "top" one, even though both have the same z-index.

JSFiddle: https://jsfiddle.net/b4fvb7e0/1/

Is it possible to make the shadow between the two elements disappear, so that the look fused?

This is actually a simplified version of a header I am trying to create, which in some pages should appear fused to the next element. JSFiddle with the header standalone and with the following element: http://jsfiddle.net/c8oat7vo/3/

解决方案

Set a pseudo element on top and bottom, and in this one set the shadow.

Also, set z-index of the pseudo elements to -1

fixed z-index issue thank to Jose Gomez

DIV {
    background-color: #7faf7f;
    width: 400px;
    height: 50px;
    position: relative;
}
.stack {
    background-color: #7f7faf;
    width: 80%;
    height: 60%;
    left: 10%;
    top: 20%;
    box-shadow: 0px 5px 20px 5px #000000;
    z-index: 1;
}
.top {
    width: 350px;
    margin-left: auto;
    margin-right: auto;
    z-index: auto;
    position: relative;
}
.bottom {
    width: 100%;
    z-index: auto;
}

.top:after, .bottom:after {
    content: "";
    position: absolute;
    top: 0px; left: 0px; right: 0px; bottom: 0px;
    box-shadow: 0px 5px 20px 5px #000000;
    z-index: -1;
}

<div class="top">
    <div class="stack"></div>
</div>
<div class="bottom"></div>

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