问题:
在引导3中删除col-md-*的左右边距。
HTML代码:
<div class="col-md-12">
<h2>OntoExplorer<span style="color:#b92429">.</span></h2>
<div class="col-md-4">
<div class="widget">
<div class="widget-header">
<h3>Dimensions</h3>
</div>
<div class="widget-content" id="">
<div id='jqxWidget'>
<div style="clear:both;margin-bottom:20px;" id="listBoxA"></div>
<div style="clear:both;" id="listBoxB"></div>
</div>
</div>
</div>
</div>
<div class="col-md-8">
<div class="widget">
<div class="widget-header">
<h3>Results</h3>
</div>
<div class="widget-content">
<div id="map_canvas" style="height: 362px;"></div>
</div>
</div>
</div>
</div>
期望的输出:
目前，这段代码在两列的右侧和左侧添加了填充/边距。我在想，为了去掉两边的多余空间，我错过了什么?
注意:
如果我删除“col-md-4”，那么两列展开到100%，但我希望它们彼此相邻。
通常使用.row来包装两列，而不是.col-md-12——这是一列包装另一列。毕竟，.row没有col-md-12所带来的额外的边距和填充，而且还通过负的左右边距减少了列所引入的空间。
<div class="container">
<div class="row">
<h2>OntoExplorer<span style="color:#b92429">.</span></h2>
<div class="col-md-4 nopadding">
<div class="widget">
<div class="widget-header">
<h3>Dimensions</h3>
</div>
<div class="widget-content">
</div>
</div>
</div>
<div class="col-md-8 nopadding">
<div class="widget">
<div class="widget-header">
<h3>Results</h3>
</div>
<div class="widget-content">
</div>
</div>
</div>
</div>
</div>
如果真的想删除空白/边距，可以添加一个类来过滤每个子列的空白/边距。
.nopadding {
padding: 0 !important;
margin: 0 !important;
}
Bootstrap 4添加了.no-gutters类。
Bootstrap 3.4添加了.row-no-gutters类
Bootstrap 3:我总是把这个风格添加到我的Bootstrap LESS / SASS:
.row-no-padding {
[class*="col-"] {
padding-left: 0 !important;
padding-right: 0 !important;
}
}
然后在HTML中你可以写:
<div class="row row-no-padding">
如果你只想瞄准子列，你可以使用子选择器(感谢John Wu)。
.row-no-padding > [class*="col-"] {
padding-left: 0 !important;
padding-right: 0 !important;
}
你也可以只移除某些设备尺寸的填充(例如SASS):
/* Small devices (tablets, 768px and up) */
@media (min-width: $screen-sm-min) and (max-width: $screen-sm-max) {
.row-sm-no-padding {
[class*="col-"] {
padding-left: 0 !important;
padding-right: 0 !important;
}
}
}
如果您希望媒体查询向上支持小型设备，可以删除媒体查询的max-width部分。
以Vitaliy Silin的回答为基础。不仅包括我们根本不需要填充的情况，还包括我们有标准大小填充的情况。
在sassmeister.com上查看此代码到CSS的实时转换
@mixin padding($side, $size) {
$padding-size : 0;
@if $size == 'xs' { $padding-size : 5px; }
@else if $size == 's' { $padding-size : 10px; }
@else if $size == 'm' { $padding-size : 15px; }
@else if $size == 'l' { $padding-size : 20px; }
@if $side == 'all' {
.padding--#{$size} {
padding: $padding-size !important;
}
} @else {
.padding-#{$side}--#{$size} {
padding-#{$side}: $padding-size !important;
}
}
}
$sides-list: all top right bottom left;
$sizes-list: none xs s m l;
@each $current-side in $sides-list {
@each $current-size in $sizes-list {
@include padding($current-side,$current-size);
}
}
然后输出:
.padding--none {
padding: 0 !important;
}
.padding--xs {
padding: 5px !important;
}
.padding--s {
padding: 10px !important;
}
.padding--m {
padding: 15px !important;
}
.padding--l {
padding: 20px !important;
}
.padding-top--none {
padding-top: 0 !important;
}
.padding-top--xs {
padding-top: 5px !important;
}
.padding-top--s {
padding-top: 10px !important;
}
.padding-top--m {
padding-top: 15px !important;
}
.padding-top--l {
padding-top: 20px !important;
}
.padding-right--none {
padding-right: 0 !important;
}
.padding-right--xs {
padding-right: 5px !important;
}
.padding-right--s {
padding-right: 10px !important;
}
.padding-right--m {
padding-right: 15px !important;
}
.padding-right--l {
padding-right: 20px !important;
}
.padding-bottom--none {
padding-bottom: 0 !important;
}
.padding-bottom--xs {
padding-bottom: 5px !important;
}
.padding-bottom--s {
padding-bottom: 10px !important;
}
.padding-bottom--m {
padding-bottom: 15px !important;
}
.padding-bottom--l {
padding-bottom: 20px !important;
}
.padding-left--none {
padding-left: 0 !important;
}
.padding-left--xs {
padding-left: 5px !important;
}
.padding-left--s {
padding-left: 10px !important;
}
.padding-left--m {
padding-left: 15px !important;
}
.padding-left--l {
padding-left: 20px !important;
}
有时可能会丢失列所需的填充。它们最终会粘在一起。为了防止这种情况，你可以像下面这样更新类:
<div class="col-md-3 NoPaddingForChildren">
<div class="col-md-6">
<label>Id</label>
<input ng-model="ID" class="form-control">
</div>
<div class="col-md-6">
<label>Value</label>
<input ng-model="Val" class="form-control">
</div>
</div>
及对应类:
.NoPaddingForChildren > div:not(:first-child):not(:last-child) {
padding-left: 0;
padding-right: 0;
}
.NoPaddingForChildren > div:first-child {
padding-left: 0;
}
.NoPaddingForChildren > div:last-child {
padding-right: 0;
}
将你的列包装成一个.row，并在这个div中添加一个名为no-gutter的类
<div class="container">
<div class="row no-gutter">
<h2>OntoExplorer<span style="color:#b92429">.</span></h2>
<div class="col-md-4">
<div class="widget">
<div class="widget-header">
<h3>Dimensions</h3>
</div>
<div class="widget-content">
</div>
</div>
</div>
<div class="col-md-8">
<div class="widget">
<div class="widget-header">
<h3>Results</h3>
</div>
<div class="widget-content">
</div>
</div>
</div>
</div>
然后将下面的内容粘贴到您的CSS文件
.row.no-gutter {
margin-left: 0;
margin-right: 0;
}
.row.no-gutter [class*='col-']:not(:first-child),
.row.no-gutter [class*='col-']:not(:last-child) {
padding-right: 0;
padding-left: 0;
}
删除/自定义引导水槽与css
参考:http://arnique.net/web-design/58/a-quick-guide-to-changing-bootstraps-gutter-width/
/* remove */
.gutter-0.row {
margin-right: -0px;
margin-left: -0px;
}
.gutter-0 > [class^="col-"], .gutter-0 > [class^=" col-"] {
padding-right: 0px;
padding-left: 0px;
}
/* customize */
.gutter-6.row {
margin-right: -3px;
margin-left: -3px;
}
.gutter-6 > [class^="col-"], .gutter-6 > [class^=" col-"] {
padding-right: 3px;
padding-left: 3px;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<div class="row gutter-6">
<div class="col-sm-3 col-md-3">
<div class="thumbnail">
<img width="100%" src="data:image/svg+xml;base64,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" alt="">
<div class="caption">
<h3>Thumbnail label</h3>
<p>more</p>
<p><a href="#" class="btn btn-primary" role="button">Button</a> <a href="#" class="btn btn-default" role="button">Button</a></p>
</div>
</div>
</div>
<div class="col-sm-3 col-md-3">
<div class="thumbnail">
<img width="100%" src="data:image/svg+xml;base64,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" alt="">
<div class="caption">
<h3>Thumbnail label</h3>
<p>more</p>
<p><a href="#" class="btn btn-primary" role="button">Button</a> <a href="#" class="btn btn-default" role="button">Button</a></p>
</div>
</div>
</div>
<div class="col-sm-3 col-md-3">
<div class="thumbnail">
<img width="100%" src="data:image/svg+xml;base64,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" alt="">
<div class="caption">
<h3>Thumbnail label</h3>
<p>more</p>
<p><a href="#" class="btn btn-primary" role="button">Button</a> <a href="#" class="btn btn-default" role="button">Button</a></p>
</div>
</div>
</div>
<div class="col-sm-3 col-md-3">
<div class="thumbnail">
<img width="100%" src="data:image/svg+xml;base64,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" alt="">
<div class="caption">
<h3>Thumbnail label</h3>
<p>more</p>
<p><a href="#" class="btn btn-primary" role="button">Button</a> <a href="#" class="btn btn-default" role="button">Button</a></p>
</div>
</div>
</div>
</div>
