Bootstrap: Gap between columns on mobile display - html

Question

I am doing a website using bootstrap 3.0 which I want the HTML and CSS to be seen neatly on a desktop, tablet and mobile.
A problem that I am having is that when you view the site on a mobile display the column are stacked (in which I am not criticizing as this stops scrolling as much as possible). However, I would like a little gap between the columns (even 1-2px).
The code so far
<div class="row">
<div class="col-xs-12 col-sm-8 col-md-8">
<div class="Columns">
..content
</div>
</div>
<div class="col-xs-12 col-sm-8 col-md-4">
<div class="Columns">
..content
</div>
</div>
</div>
An image to show what this is doing and to display the stack columns
How could I achieve a little gap between the columns?
Thanks

Answer 1

Add a custom class .column-margin to set the margin between the rows/columns.
#media (max-width: 991px) {
.column-margin {
margin: 2px 0;
}
}
<div class="row">
<div class="col-xs-12 col-sm-8 col-md-8">
<div class="Columns column-margin">
<img src="http://placehold.it/300x300" />
</div>
</div>
<div class="col-xs-12 col-sm-8 col-md-4">
<div class="Columns">
<img src="http://placehold.it/300x300" />
</div>
</div>
</div>
Codeply

Answer 2

Give a margin for the col-xs-12 so all blocks will have bottom margin in mobile devices.
#media (max-width: 767px) {
.col-xs-12 {
margin-bottom: 10px;
}
}

Answer 3

To get even spacing and column size I would do the following: (Note: change col-md-* to col-sm-* or col-xs-* as you like )
<div class="container">
<div class="col-md-3 ">
<div class="col-md-12 well">
Some Content..
</div>
</div>
<div class="col-md-3 ">
<div class="col-md-12 well">
Some Second Content..
</div>
</div>
<div class="col-md-3 ">
<div class="col-md-12 well">
Some Second Content..
</div>
</div>
<div class="col-md-3 ">
<div class="col-md-12 well">
Some Second Content..
</div>
</div>
<div class="col-md-3 ">
<div class="col-md-12 well">
Some Second Content..
</div>
</div>
<div class="col-md-3 ">
<div class="col-md-12 well">
Some Second Content..
</div>
</div>
<div class="col-md-3 ">
<div class="col-md-12 well">
Some Second Content..
</div>
</div>
<div class="col-md-3 ">
<div class="col-md-12 well">
Some Second Content..
</div>
</div>
</div>