本文介绍了仅在左和右的箱子阴影的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我试图在一个只有左右影子的元素上创建一个插入盒阴影。我不能让它工作。
I am attempting to create an inset box-shadow on an element that only has the shadow on the left and right. I cannot get it to work.
这是我试过的盒子阴影：
Here is the box-shadow I tried:
box-shadow: inset 10px 0px 25px 0px rgba(0,0,0,0.45);
我将为右侧添加另一个。问题是这个设置也显示阴影在顶部和底部，我不能得到它不显示，仍然显示在左侧的阴影。这是否可能？
I will add another one for the right side. The problem is this setting also shows the shadow slightly on the top and bottom and I cannot get it to not show and still show a shadow on the left side. Is this possible?
jsFiddle
推荐答案
在来缩小阴影。这可以隐藏不需要的顶部和底部阴影。
Use a negative value on spread-radius (4th value) to shrink the shadow. This can hide the unwanted top and bottom shadow.
box-shadow: inset 25px 0px 25px -25px rgba(0,0,0,0.45), inset -25px 0px 25px -25px rgba(0,0,0,0.45);
请参阅。
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