* { box-sizing: border-box; } body { background-color: #0d193b; color: #a0ccff; font-family: sans-serif; } h1, h2, h3, h4, h5, h6 { margin-top: 4px; margin-bottom: 4px; color: #ffffff; font-weight: normal; } h1, h2, h3 { text-align: center; } h4, h5, h6 { font-weight: bold; } a { color: #00caca; text-decoration: none; } a:hover { color: #4affff; } a:active { color: #ffffff; } img { max-width: 100%; }