h1{ color: black; } header{ font-size: 3rem; margin-bottom: 2%; } main{ display: flex; } nav{ margin-right: 5%; width: 10%; } nav h1{ font-size: 1.3rem; } nav h2{ font-size: 1rem; margin-bottom: 0; } article{ width: 40rem; } ul{ list-style-type: "- "; } pre { background-color: lightgray; padding: 3px; overflow: auto; } img{ width: 100%; margin-top: 10px; }