override bootstrap container width - css

Question

I have an easy HTML template using bootstrap 3. Template has following structure: static header, static footer and content which is in the bootstrap's class "Container". In the middle of content I have bootstrap'w "Well" and i want it make looks like header and footer. I mean I want it to be the full width of the screen on any screen.
I created easy fiddle.
Here's a question, is there any way to override container's width inside this container?
<header>
<div class="container">
<div class="content">
</div>
<div class="well">
</div>
<div class="content">
</div>
</div>
<footer>

Answer 1

Here theres a simpler trick that works like a charm: https://css-tricks.com/full-width-containers-limited-width-parents/
Look for: "No calc() needed"
HTML
<header>
<div class="container">
<div class="content"></div>
<div class="well full-width"></div>
<div class="content"></div>
</div>
<footer>
CSS
.full-width {
width: 100vw;
position: relative;
left: 50%;
right: 50%;
margin-left: -50vw;
margin-right: -50vw;
}

Answer 2

The div container has the following max-width specified in media query as default by bootstrap.
#media (min-width: 768px){
.container{
max-width:750px;
}
}
#media (min-width: 992px){
.container{
max-width:970px;
}
}
To override this add the below style in your stylesheet
// This should be added in default styles, not within media query
.container{
margin:0;
padding:0;
}
#media (min-width: 768px){
.container{
max-width:100%;
}
}
#media (min-width: 992px){
.container{
max-width:100%;
}
}

Answer 3

ORIGINAL + BEST PRACTICE: always move the .well outside of .container to stay idiomatic with Bootstrap.
UPDATE + IF ABOVE IS NOT AN OPTION: Given that you cannot easily modify .container styles and/or move the .well outside of .container, your best bet is JavaScript. Here I have made a script that makes .well expand as the width of the window changes.
Here is a jsFiddle
The idea is that you want a negative value for margin-left and margin-right so that .well expands across the screen.