.blog-articles{max-width:30em;margin:0 auto}.blog-post{max-width:45em;margin:0 auto}.blog-post h1{margin:2em 2em 1.5em}h1{margin:1em 2em;text-align:center}pre{background-color:#f6eded;padding:1em 1.5em;border-radius:.5em}