How to align Bootstrap panel center of a web page? - html

Question

I would like to align this entire panel center of the web page. Could someone help me out on this?
Also could you please help me a good book I can use to learn Bootstrap design?
<div class="panel panel-default" style="max-width:500px;margin-left:auto;margin-right:auto;">
<div class="panel-heading">
<h3 class="panel-title text-center">User Login</h3>
</div>
<div class="panel-body">
#Html.ValidationSummary(true)
<table class="table">
<tbody>
<tr>
<td>#Html.LabelFor(model => model.Username)</td>
<td>#Html.EditorFor(model => model.Username)</td>
<td>#Html.ValidationMessageFor(model => model.Username)</td>
</tr>
<tr>
<td>#Html.LabelFor(model => model.Password)</td>
<td>#Html.EditorFor(model => model.Password)</td>
<td>#Html.ValidationMessageFor(model => model.Password)</td>
</tr>
<tr>
<td></td>
<td>
<input type="submit" value="Login" class="btn btn-default" style="" />
</td>
<td></td>
</tr>
</tbody>
</table>
</div>
</div>
Thanking you
Swetha

Answer 1

You can remove css style from panel and wrap this as follows.
<div class="col-sm-6 col-sm-offset-3">
<div class="panel panel-default">
...
</div>
</div>

Answer 2

just add
position:fixed
and it will keep it in view even if you scroll down. see it at http://jsfiddle.net/xyrkyxe8/
#mydiv {
position:fixed;
top: 50%;
left: 50%;
width:30em;
height:18em;
margin-top: -9em; /*set to a negative number 1/2 of your height*/
margin-left: -15em; /*set to a negative number 1/2 of your width*/
border: 1px solid #ccc;
background-color: #f3f3f3;
}

Answer 3

It worth saying that in order to center a panel, or even a group of pannels, it's also possible to use a combination of flex and justify-content property:
.row-fluid {
display: flex;
justify-content: center;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<div class="container">
<div class="row text-center row-fluid">
<div class="col-xs-3">
<div class="panel panel-default">
<div class="panel-heading">Panel 1</div>
<div class="panel-body">
<ul class="list-group">
<li class="list-group-item">Line 1</li>
<li class="list-group-item">Line 2</li>
</ul>
</div>
</div>
</div>
<div class="col-xs-3">
<div class="panel panel-default">
<div class="panel-heading">Panel 2</div>
<div class="panel-body">
<ul class="list-group">
<li class="list-group-item">Line 1</li>
<li class="list-group-item">Line 2</li>
</ul>
</div>
</div>
</div>
<div class="col-xs-3">
<div class="panel panel-default">
<div class="panel-heading">Panel 3</div>
<div class="panel-body">
<ul class="list-group">
<li class="list-group-item">Line 1</li>
<li class="list-group-item">Line 2</li>
</ul>
</div>
</div>
</div>
</div>
</div>