Bootstrap3
CSS (gutter only, without margins around):
.row.row-gutter {
margin-bottom: -15px;
overflow: hidden;
}
.row.row-gutter > *[class^="col"] {
margin-bottom: 15px;
}
CSS (equal margins around, 15px/2):
.row.row-margins {
padding-top: 7px; /* or margin-top: 7px; */
padding-bottom: 7px; /* or margin-bottom: 7px; */
}
.row.row-margins > *[class^="col"] {
margin-top: 8px;
margin-bottom: 8px;
}
Usage:
<div class="row row-gutter">
<div class="col col-sm-9">first</div>
<div class="col col-sm-3">second</div>
<div class="col col-sm-12">third</div>
</div>
(with SASS or LESS 15px could be a variable from bootstrap)