Add a few standard styles

go/blog/blog.go

<head>
	<meta charset="utf-8" />
	<title>A blog</title>
	<style>
		article header {
			display: flex;
			align-items: center;
		}
		article h1 {
			margin: 0;
			margin-right: 1em;
		}
		article time {
			color: #666;
		}
	</style>
</head>
<body>