拿这个HTML。 如果从黄色框中取出“border:1px solid”,它的大小会发生很大变化(它会大幅缩小)。
...为什么?
更新:如果我将p
更改为内联块,则大小保持不变。那么,p
标签似乎是问题......但为什么外部div中的边框会使内联标签如此显着地改变其大小?
<body style="height:100%">
<div style="background-color: red; border-style:solid;">
<div style="background-color: yellow; border:1px solid;">
<p>Inside</p>
</div>
<p>Something</p>
</div>
<div style="background-color: blue; border-style:solid;">
<p>Something else </p>
</div>
</body>
答案 0 :(得分:5)
在这里: -
The margins of adjacent siblings are collapsed (except when the later sibling needs to be cleared past floats). For example:
<p>The bottom margin of this paragraph is collapsed...</p>
<p>...with the top margin of this paragraph.<p>
If there is no border, padding, inline content, or clearance to separate the margin-top of a block with the margin-top of its first child block, or no border, padding, inline content, height, min-height, or max-height to separate the margin-bottom of a block with the margin-bottom of its last child, then those margins collapse. The collapsed margin ends up outside the parent.
If there is no border, padding, inline content, height, or min-height to separate a block's margin-top from its margin-bottom, then its top and bottom margins collapse.
看看这个小提琴 - 在添加几个跨度后它现在没有崩溃。 http://jsfiddle.net/aPaBy/
<div style="background-color: red; border-style:solid;">
<div id="test" class="border" style="background-color: yellow;">
<span>hi</span>
<p>Inside <button>Test</button></p>
<span>hi</span>
</div>
<p>Something</p>
</div>
答案 1 :(得分:0)
我认为这是因为你没有在其中进行任何重置...试试这个...... 在你的CSS添加
*{margin:0px;padding:0px;}
现在尽可能多地给出边距和填充...它会起到魅力......给它一个镜头
我编辑了你的小提琴 http://jsfiddle.net/BbKED/1/