background url not beneath text - css

Question

I am working on a project where we are using blocks which contains text. The blocks have a header image. The result should be something like the picture below.
The problem I am facing is that the image is set using the CSS background-url propertly, which makes the image go beneath the text instead of being displayed as a header image. I am using the code below, for the purpose of this question in the style of the picture above:
.block {
background-color: #fff;
border-radius: 5px;
padding: 20px 40px 20px 40px;
margin: 10px 10px 10px 10px;
}
.header {
background: url('https://www.facebook.com/rsrc.php/v2/yq/r/ZAmUp1oGGPN.png');
background-size: contain;
height: 300px;
}
This creates the <div> that I need, however as you can see on the picture below, it does not give me the result I want.
I have tried setting the .header to display: block, but this did not change anything. I have also tried using margin to force the text to be displayed under the image, which did not work either. Can someone help me to get the result I want?
The relevant HTML is down below.
<div class="container">
<div class="row">
<div class="col-lg-12">
<div class="block header">
<h1>A Bootstrap Starter Template</h1>
<p class="lead">Complete with pre-defined file paths that you won't have to change!</p>
<ul class="list-unstyled">
<li>Bootstrap v3.3.6</li>
<li>jQuery v1.11.1</li>
</ul>
</div>
</div>
</div>
</div>

Answer 1

Change your html to below:
<div class="container">
<div class="row">
<div class="col-lg-12">
<div class="header">
</div>
<div class="block">
<h1>A Bootstrap Starter Template</h1>
<p class="lead">Complete with pre-defined file paths that you won't have to change!</p>
<ul class="list-unstyled">
<li>Bootstrap v3.3.6</li>
<li>jQuery v1.11.1</li>
</ul>
</div>
</div>
</div>
</div>
You have put block and header in the same div, so your background-color in .block class is overriden by background of .header class.
Here is fiddle.

Answer 2

If you really want to use a background image, consider using % padding. That also helps the layout stay responsive. Also, cover forces the background image to cover the entire div, so you don't want that at all.
.block {
background-color: #fff;
border-radius: 5px;
padding: 20px 40px 20px 40px;
margin: 10px 10px 10px 10px;
}
.header {
background: url('https://www.facebook.com/rsrc.php/v2/yq/r/ZAmUp1oGGPN.png');
background-size: 100% auto;
background-repeat: no-repeat;
padding-top: 32%;
}
<div class="container">
<div class="row">
<div class="col-lg-12">
<div class="block header">
<h1>A Bootstrap Starter Template</h1>
<p class="lead">Complete with pre-defined file paths that you won't have to change!</p>
<ul class="list-unstyled">
<li>Bootstrap v3.3.6</li>
<li>jQuery v1.11.1</li>
</ul>
</div>
</div>
</div>
</div>

Answer 3

I keep my original suggestion of using an <img> instead of a background image. It is both easier to implement and more correct semantically.
I've tried to simulate the result in your image below:
<div class="container">
<div class="row">
<div class="col-md-12">
<div class="row content">
<img class="header_img" src="https://www.facebook.com/rsrc.php/v2/yq/r/ZAmUp1oGGPN.png" />
<div class="col-md-12">
<div class="block header">
<h1>A Bootstrap Starter Template</h1>
<p class="lead">Complete with pre-defined file paths that you won't have to change!</p>
<ul class="list-unstyled">
<li>Bootstrap v3.3.6</li>
<li>jQuery v1.11.1</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
CSS:
.header_img{
width: 100%;
height: auto;
}
.content{
background-color: white;
border-radius: 5px;
margin-top: 20px;
overflow: hidden;
}
Demo: http://jsfiddle.net/bh7Lh42k/1/