悬停一个元素时如何影响其他元素 [英] How to affect other elements when one element is hovered

问题描述

我想做的是将某个div悬停时，它将影响另一个div的属性.

What I want to do is when a certain div is hovered, it'd affect the properties of another div.

例如，在此JSFiddle演示中，当您将鼠标悬停在#cube上时，它会更改background-color，但是我想要的是当我将鼠标悬停在#container上时，#cube会受到影响.

For example, in this JSFiddle demo, when you hover over #cube it changes the background-color but what I want is that when I hover over #container, #cubeis affected.

div {
  outline: 1px solid red;
}

#container {
  width: 200px;
  height: 30px;
}

#cube {
  width: 30px;
  height: 100%;
  background-color: red;
}

#cube:hover {
  width: 30px;
  height: 100%;
  background-color: blue;
}

<div id="container">
  <div id="cube">
  </div>
</div>

推荐答案

如果多维数据集直接位于容器内部:

If the cube is directly inside the container:

#container:hover > #cube { background-color: yellow; }

如果多维数据集位于容器旁边(在容器关闭标签之后):

If cube is next to (after containers closing tag) the container:

#container:hover + #cube { background-color: yellow; }

如果多维数据集位于容器内的某个位置:

If the cube is somewhere inside the container:

#container:hover #cube { background-color: yellow; }

如果多维数据集是容器的同级物:

If the cube is a sibling of the container:

#container:hover ~ #cube { background-color: yellow; }

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