如何使 padding:auto 在 CSS 中工作？
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How to make padding:auto work in CSS?
提问by Vaibhav Kanwal
I am working on a legacy project that has CSS Reset with *{ margin:0; padding:0 }applied to everything. Now, my new code doesn't need that as it relies on Normalize.css. This hasn't been much of a problem but at some places I need to use both styles.
我正在处理一个将 CSS 重置*{ margin:0; padding:0 }应用于所有内容的遗留项目。现在，我的新代码不需要它，因为它依赖于 Normalize.css。这不是什么大问题，但在某些地方我需要同时使用这两种风格。
How do I unreset my CSS? I have been able to do *{margin:auto}which works fine. The same isn't true about padding. Is there an equivalent way to reset the padding. How do you go about solving this?
如何取消重置我的 CSS？我已经能够做的*{margin:auto}很好。填充并非如此。是否有等效的方法来重置填充。你如何解决这个问题？
回答by Mr. Alien
autois not a valid value for paddingproperty, the only thing you can do is take out padding: 0;from the *declaration, else simply assign paddingto respective property block.
auto不是padding属性的有效值，您唯一可以做的就是padding: 0;从*声明中取出，否则只需分配padding给相应的属性块。
If you remove padding: 0;from * {}than browser will apply default styles to your elements which will give you unexpected cross browser positioning offsets by few pixels, so it is better to assign padding: 0;using *and than if you want to override the padding, simply use another rule like
如果您padding: 0;从* {}浏览器中移除，则会将默认样式应用于您的元素，这会给您带来意想不到的跨浏览器定位偏移几个像素，因此最好padding: 0;使用 using进行分配，*而不是如果您想覆盖填充，只需使用另一个规则，例如
.container p {
padding: 5px;
}
回答by probablyup
You should just scope your * selector to the specific areas that need the reset. .legacy * { }, etc.
您应该将 * 选择器范围限定为需要重置的特定区域。.legacy * { }， 等等。
回答by Adam Grant
The simplest supported solution is to either use margin
最简单的支持解决方案是使用保证金
.element {
display: block;
margin: 0px auto;
}
Or use a second container around the element that has this margin applied. This will somewhat have the effect of padding: 0px autoif it did exist.
或者在应用了此边距的元素周围使用第二个容器。padding: 0px auto如果它确实存在，这将在某种程度上产生影响。
CSS
CSS
.element_wrapper {
display: block;
margin: 0px auto;
}
.element {
background: blue;
}
HTML
HTML
<div class="element_wrapper">
<div class="element">
Hello world
</div>
</div>
回答by Bj?rn Tantau
You can reset the padding (and I think everything else) with initialto the default.
您可以将填充（我认为其他所有内容）重置initial为默认值。
p {
padding: initial;
}
回答by Facundo Colombier
if you're goal is to reset EVERYTHING then @Bj?rn's answer should be your goal but applied as:
如果您的目标是重置一切，那么@Bj?rn 的答案应该是您的目标，但适用于：
* {
padding: initial;
}
if this is loaded after your original reset.css should have the same weight and will rely on each browser's default padding as initial value.
如果在原始 reset.css 之后加载它应该具有相同的权重，并且将依赖每个浏览器的默认填充作为初始值。
