Bootstrap full-width with 2 different backgrounds (and 2 columns) - html

Question

It's a little bit hard to explain, that's why i also can't find the answer on Google.
I'm working with Bootstrap 3, and i need a full width background image. On top of that 2 transparent color backgrounds. I made a example image to make it all clear:
1+2: combined transparent color background
3+4: combined transparent color background
1+2+3+4: combined background image (lowest layer)
Does anyone know if this is possible and how? Thanks for your help!

Answer 1

Yes, using the techniques outlined in this question but extending it to the columns.
The Codepen Demo (below) shows the result better than the Stack Snippet which is included for reference.
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
overflow: hidden;
/* prevent scrollbar */
}
.container {
width:50%;
margin:auto;
margin-top: 1em;
position: relative;
overflow: visible;
}
.extra:before {
content: '';
display: block;
/* override bootstrap */
position: absolute;
top: 0;
left: 50%;
width: 100vw;
height: 100%;
transform: translate(-50%, 0);
}
[class*="col"] {
border: 2px solid grey;
min-height: 120px;
position: relative;
}
.left:before {
content: '';
position: absolute;
height: 100%;
width: 100vw;
top: 0;
right: 0;
background: rgba(255, 0, 0, 0.5)
}
.right:before {
content: '';
position: absolute;
height: 100%;
width: 100vw;
top: 0;
left: 0;
background: rgba(0, 0, 255, 0.25);
}
<div class="container extra">
<div class="row">
<div class="col-sm-4 left"></div>
<div class="col-sm-8 right"></div>
</div>
</div>
Codepen Demo

Answer 2

I think i figured it out.. Thanks to Paulie_D
Very simple example:
HTML:
<div class="fullwidth">
<div class="cell red20">xxx</div>
<div class="container cell">
<div class="row">
<div class="col-sm-4 red20">xx</div>
<div class="col-sm-8 red50">xx</div>
</div>
</div>
<div class="cell red50">xxx</div>
</div>
CSS:
.fullwidth {
background: url('http://www.ustudy.eu/nl/wp-content/uploads/2013/10/Test-taking-from-Flickr.jpg');
display:table;
width:100%;
}
.cell{
display:table-cell;
vertical-align:top;
}
.red20{
background-color:rgba(255,0,0,0.2);
}
.red50{
background-color:rgba(255,0,0,0.5);
}
Link to jsfiddle: https://jsfiddle.net/DTcHh/14045/