bootstrap-spacer/bootstrap-spacer.css

A simple CSS library containing rules for spacing bootstrap rows and columns apart...

/**
 * bootstrap-spacer - v1.0.1 - 2017-07-25
 * https://github.com/chigozieorunta/bootstrap-spacer
 *
 * Copyright (c) 2017 Chigozie Orunta
 * Licensed MIT <https://github.com/chigozieorunta/bootstrap-spacer/blob/master/LICENSE>
**/

/* Row Spacers */
.row-spacer, .row-spacer-md {
  margin-bottom: 3em !important; 
}

.row-spacer-xs {
  margin-bottom: 0.75em !important; 
}

.row-spacer-sm {
  margin-bottom: 1.5em !important; 
}

.row-spacer-lg {
  margin-bottom: 6em !important; 
}

/* Column Spacers */
.row-col-spacer > div, .row-col-spacer-md > div {
  margin-bottom: 3em !important; 
}

.row-col-spacer-xs > div {
  margin-bottom: 0.75em !important; 
}

.row-col-spacer-sm > div {
  margin-bottom: 1.5em !important; 
}

.row-col-spacer-lg > div {
  margin-bottom: 6em !important; 
}

.row-col-spacer > div:last-child,
.row-col-spacer-xs > div:last-child,
.row-col-spacer-sm > div:last-child,
.row-col-spacer-md > div:last-child,
.row-col-spacer-lg > div:last-child {
  margin-bottom: 0 !important; 
}

/* Small Devices & Tablets */
@media only screen and (min-width: 768px) {
  .row-col-spacer > div,
  .row-col-spacer-xs > div,
  .row-col-spacer-sm > div,
  .row-col-spacer-md > div,
  .row-col-spacer-xs > div {
    	margin-bottom: 0 !important; 
	} 
}