I have code with header, container (content) and footer, I can't align container vertically center, how I Can do it:
html, body {
height: 100%;
}
footer {
height: 50px;
background: #eee;
text-align: center;
line-height: 50px;
position: absolute;
width: 100%;
bottom: 0;
}
.text {
padding-bottom: 20px;
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
</head>
<body>
<div id="app">
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Brand</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
<li><a href="#">Link</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">Separated link</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-left">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
<ul class="nav navbar-nav navbar-right">
<li><a href="#">Link</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">Separated link</a></li>
</ul>
</li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
</div>
<div class="container">
<div class="row">
<div class="col-md-12">
<div class="col-md-6 text">
<p>
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</p>
</div>
<div class="col-md-6 text">
<p>
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</p>
</div>
<div class="col-md-6 text">
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Rerum dicta magni neque saepe sit ducimus culpa laudantium corporis doloribus delectus mollitia similique blanditiis ratione et, magnam. Expedita blanditiis in sunt.
</p>
</div>
<div class="col-md-6 text">
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Blanditiis consequatur, voluptatem harum excepturi, earum similique dolorem nisi deserunt id ipsam vitae explicabo, nostrum. Accusantium quos aut ad, adipisci quod optio.
</p>
</div>
</div>
</div>
</div>
<footer>
text center;
</footer>
<script src="https://code.jquery.com/jquery-3.1.0.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</body>
</html>
How I Can vertically align center container considering height header and footer with position absolute;? Please help me. And I have 4 columns with col-md-6.