Bootstrap 中的标签功能不正常？

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最佳答案

the css property of <hr> are :

hr {
-moz-border-bottom-colors: none;
-moz-border-image: none;
-moz-border-left-colors: none;
-moz-border-right-colors: none;
-moz-border-top-colors: none;
border-color: #EEEEEE -moz-use-text-color #FFFFFF;
border-style: solid none;
border-width: 1px 0;
margin: 18px 0;
}

It correspond to a 1px horizontal line with a very light grey and vertical margin of 18px.

and because <hr> is inside a <div> without class the width depends on the content of the <div>

if you would like the <hr> to be full width, replace <div> with <div class='row'><div class='span12'> (with according closing tags).

If you expect something different, describe what you expect by adding a comment.

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By default, the hr element in Twitter Bootstrap CSS file has a top and bottom margin of 18px. That's what creates a gap. If you want the gap to be smaller you'll need to adjust margin property of the hr element.

In your example, do something like this:

.container hr {
margin: 2px 0;
}

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I solved this by setting the HR background-color to black like so:

<hr style="width: 100%; color: black; height: 1px; background-color:black;" />

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It is because Bootstrap's DEFAULT CSS for <hr /> is ::

hr {
margin-top: 20px;
margin-bottom: 20px;
border: 0;
border-top: 1px solid #eeeeee;
}

it creates 40px gap between those two lines

so if you want to change any particular <hr /> margin style in your page you may try something like this ::

<hr style="margin-bottom:5px !important; margin-top:5px !important; " />

if you want to change appearance/other styles of any particular <hr /> in your page like color and border type or thickness the you may try something like :

<hr style="border-top: 1px dotted #000000 !important; " />

for all <hr /> in your page

<style>
hr {
border-top: 1px dotted #000000 !important;
margin-bottom:5px !important;
margin-top:5px !important;
}
</style>

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I think it would look better if we add border-color : transparent as per below:

<hr style="width: 100%; background-color: black; height: 1px; border-color : transparent;" />

If you don't put the border transparent it will be white and i don't think that is good all time.

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I was able to customize the hrTag by editing the inline styling as such:

<div class="row"> <!-- You can also position the row if need be. -->
<div class="col-md-12 col-lg-12"><!-- set width of column I wanted mine to stretch most of the screen-->
<hr style="min-width:85%; background-color:#a1a1a1 !important; height:1px;"/>
</div>
</div>

The hrTag is now thicker and more visible; it's also a darker gray color. The bootstrap code is actually very flexible. As the snippet demonstrates above, you can use inline styling or your own custom code. Hope this helps someone.

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Instead of writing

<hr>

Write

<hr class="col-xs-12">

And it will display full width as normal.

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You may want one of these, so to correspond to the Bootstrap layout:

<div class="col-xs-12">
<hr >
</div>


<!-- or -->


<div class="col-xs-12">
<hr style="border-style: dashed; border-top-width: 2px;">
</div>


<!-- or -->


<div class="col-xs-12">
<hr class="col-xs-1" style="border-style: dashed; border-top-width: 2px;">
</div>

Without a DIV grid element included, layout may brake on different devices.