body {
	margin: 0;
	font-family: sans-serif;
	background: #9f9f9f;
}
.topbar {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	background: #333;
	color: #fff;
	padding: 20px 30px;
	overflow: hidden;
	z-index: 1000;
}
.site-name {
	float: left;
	font-weight: bold;
	font-size: 28px;
}
.nav-links {
	float: right;
}
.nav-links a {
	color: #fff;
	text-decoration: none;
	margin-left: 20px;
	font-size: 18px;
}
.container {
	width: 100%;
	max-width: 1200px;
	margin-top: 80px; 
	margin: 0 auto;
	overflow: hidden;
}
.sidebar {
	position: fixed;
	margin-top: 80px;
	top: 120px
	left: 0;
	width: 200px;
	height: calc(100% - 60px);
	background: #eee;
	padding: 15px;
	box-sizing: border-box;
	overflow-y: auto;
}
.sidebar h3 {
	margin: 15px 0 5px;
	font-size: 14px;
	color: #555;
	border-bottom: 1px solid #ccc;
	padding-bottom: 3px;
}
.content {
	margin-top: 80px;
	margin-left: 220px;
	padding: 20px;
	background: #fff;
	min-height: 500px;
	box-sizing: border-box;
}
.sidebar a {
	display: block;
	padding: 5px 0;
	color: #333;
	text-decoration: none;
}
.sidebar a:hover {
	text-decoration: underline;
}
.post-date {
font-size: 12px;
color: #777;
margin: -5px 0 10px;
}