Take for example this image below of a project I am working on... The Blue background is a DIV that is inside of another DIV that wraps all that sidebar contact section together. To get the Blue BG DIV to have the round border and not have a gap because of the parents margin/padding I had to use negative marginsmargin: -9px -2px 8px -6px;
以下图中我正在处理的项目为例...蓝色背景是一个DIV，位于另一个DIV中，将所有侧边栏联系部分包装在一起。为了使蓝色BG DIV具有圆形边界而没有间隙，因为父母边距/填充我不得不使用负边距：-9px -2px 8px -6px;
So the question is, is it bad practice to use Negative Margins or Padding?
所以问题是，使用负边距或填充是不好的做法？
2 个解决方案
#1
33
No; it's not bad practice, so long as you're aware of the fact you're using negative margins, and that this necessarily 'pulls'/'moves' elements from their otherwise-'normal' position.
没有;这是不错的做法，只要你知道你使用负边距的事实，并且这必然会“拉动”/“移动”元素从其他“正常”的位置。
Why would you even worry about this?
你为什么要担心这个？
#2
6
Negative margins are a great way to negate the padding inside of an element for headings etc. I have found no negative results (pardon the pun) of using negative margins. E.g:
负边距是否定标题元素内部填充的好方法。我没有发现使用负边距的负面结果（原谅双关语）。例如：
<div style="padding:10px;border:1px solid blue;">
<div style="margin:-10px -10px 10px -10px;backgorund-color:yellow;">Full width heading</div>
The content of the div which is now padded in by ten pixels.
<div>
I was worried about negative margins when I first discovered them but have found them to be very useful is so many layout areas- actually reducing div counts and cleaning up layout code.
当我第一次发现它们时，我担心负边距，但发现它们非常有用的是如此多的布局区域 - 实际上减少了div数并清理了布局代码。
#1
33
No; it's not bad practice, so long as you're aware of the fact you're using negative margins, and that this necessarily 'pulls'/'moves' elements from their otherwise-'normal' position.
没有;这是不错的做法，只要你知道你使用负边距的事实，并且这必然会“拉动”/“移动”元素从其他“正常”的位置。
Why would you even worry about this?
你为什么要担心这个？
#2
6
Negative margins are a great way to negate the padding inside of an element for headings etc. I have found no negative results (pardon the pun) of using negative margins. E.g:
负边距是否定标题元素内部填充的好方法。我没有发现使用负边距的负面结果（原谅双关语）。例如：
<div style="padding:10px;border:1px solid blue;">
<div style="margin:-10px -10px 10px -10px;backgorund-color:yellow;">Full width heading</div>
The content of the div which is now padded in by ten pixels.
<div>
I was worried about negative margins when I first discovered them but have found them to be very useful is so many layout areas- actually reducing div counts and cleaning up layout code.
当我第一次发现它们时，我担心负边距，但发现它们非常有用的是如此多的布局区域 - 实际上减少了div数并清理了布局代码。