.sticky {
background-color: #fafafa;
}
<script type="text/javascript" src="https://secure.meetup.com/43813610717765820835/script/api/mu.btns.js?id=4215elfvuoi274q752abcmjoa0"></script>


/* Right Content */
.left-sidebar #primary {
	float: right;
	margin: 0 0 0 -22.4%;
	width: 100%;
}
.left-sidebar #content {
	margin: 0 3.6% 0 34%;
	width: 54.4%;
}
.left-sidebar #secondary {
	float: left;
	margin-left: 3.6%;
	margin-right: 0;
	width: 22.8%;
}

.entry-title {line-height: 1.15em;}