Setting Bootstrap buttons to the same width - html

Question

I have a bootstrap sidebar that contains a couple buttons. Unfortunately, it looks very ugly and I want each button to be the same size.
These buttons are contained in a sidebar and will be stack vertically. I want to avoid setting a pixel number for each button. Here is the jfiddle
https://jsfiddle.net/66bk2rfc/
HTML
<div id="reading-sidebar" class="col-xs-3 panel-default">
<div id="reading-sidebar-title" class="panel-heading">Options
<button type="button" class="btn btn-xs btn-default pull-right" id="reading-sidebar-hide-btn"><i class="glyphicon glyphicon-remove"></i></button>
</div>
<div id="reading-sidebar-contents" class="panel-body">
<ul class="sidebar-button-list">
<button type="button" id="pre-reading-btn" class="btn btn-default pull-left"><i class="glyphicon glyphicon-minus"></i> Pre Readings</button><br>
<button type="button" id="passage-btn" class="btn btn-default pull-left"><i class="glyphicon glyphicon-minus"></i> Passage</button><br>
<button type="button" id="post-reading-btn" class="btn btn-default pull-left"><i class="glyphicon glyphicon-minus"></i> Post Readings</button><br>
<button type="button" id="media-btn" class="btn btn-default pull-left"><i class="glyphicon glyphicon-minus"></i> Media</button><br>
<button type="button" id="question-btn" class="btn btn-default pull-left"><i class="glyphicon glyphicon-minus"></i> Questions</button>
</ul>
</div>
</div>

Answer 1

The "bootstrap" way to do this would be to use btn-block on your button elements. Like so:
<button type="button" class="btn btn-primary btn-lg btn-block">Full-width Button</button>

Answer 2

You can also just surround them with <div class="btn-group-lg btn-group-vertical">
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<div id="reading-container" class="col-xs-6">
<div id="reading-sidebar" class="col-xs-3 panel-default"></div>
<div id="reading-sidebar-contents" class="panel-body">
<div class="btn-group-lg btn-group-vertical">
<button type="button" id="pre-reading-btn" class="btn btn-default"><i class="glyphicon glyphicon-minus"></i> Pre Readings</button>
<button type="button" id="passage-btn" class="btn btn-default"><i class="glyphicon glyphicon-minus"></i> Passage</button>
<button type="button" id="post-reading-btn" class="btn btn-default"><i class="glyphicon glyphicon-minus"></i> Post Readings</button>
<button type="button" id="media-btn" class="btn btn-default"><i class="glyphicon glyphicon-minus"></i> Media</button>
<button type="button" id="question-btn" class="btn btn-default"><i class="glyphicon glyphicon-minus"></i> Questions</button>
</div>
</div>
</div>

Answer 3

If I get your question right. Do you mean this:
#reading-sidebar-contents .btn{
width:200px;
}
Here is fiddle: https://jsfiddle.net/66bk2rfc/6/

Answer 4

I changed your fiddle to match a solution. You can give your sidebar a width of 100%. Then you can just make your buttons 80% with one line of css and make them stay in the middle with the margin:0 auto. If you want to adjust your size of the buttons, you can easely change it with just the one line. You could also add the text-align:left, set a font-size for all the buttons,... for better styling to the buttons.
#reading-sidebar
{
width:80%;
margin:0 auto;
}
#reading-sidebar-contents button
{
width:100%;
margin:0 auto;
}
Link: https://jsfiddle.net/66bk2rfc/1/

Answer 5

I suggess You to do it like this:
.btn {
width: 100%;
height: 56px;
padding-left: 2% !important;
}
.btn i {
left: 10px;
width: 10%;
top: 25%;
height: 50%;
}
.btn.pull-left {
text-align: left;
}
Also if you just want only these affect to sidebar buttons, add
#reading-sidebar .btn { } ETC...
If you want it not 100% width and centered, You should do it like this,
.btn { width: 80%; margin-left: 10%; }
That will make it centered easily. :)