html, body { position: relative; color: #333; overflow-x: hidden; margin: 0; padding: 0; font-family: Helvetica, arial, freesans, clean, sans-serif; font-size: 1em; line-height: 1.5em; background-color: #444; height: 100%; overflow: hidden; } body { overscroll-behavior: none; } h1, h2, h3, h4, h5, h6, p { font-size: 1em; margin: 0; padding: 0; font-weight: normal; } p { margin: 1em; } a:link, a:visited, a:hover a:active { color: #333; text-decoration: none; } img { border: none; } #header { position: fixed; z-index: 1000; top: 0; left: 0; background-color: #444; width: 100%; padding: 10px; text-align: center; } #header h1 a { color: #fff; font-size: 1.5em; } #container { position: absolute; width: 100%; margin: 0 auto; background-color: #fff; overflow: hidden; } #editor-wrapper { border-right: 10px solid #eee; } #preview-wrapper { padding-left: 10px; } .column { padding: 0; margin: 0; white-space: nowrap; display: inline-block; width: 50%; vertical-align: top; overflow-y: scroll; } #footer { padding: 5px; z-index: 1001; position: absolute; bottom: 0; left: 0; width: 100%; background-color: #444; color: #fff; text-align: center; display: flex; justify-content: center; align-items: center; } #footer #copyright { color: #999; } #copyright img { width: 16px; display: block; padding: 0; margin: 0; } #footer #copyright a { display: block; padding: 0; margin: 0; font-size:0; color: #999; } #footer #copyright a:hover { color: #fff; text-decoration: none; }