body { margin: 0; font: 12px arial, sans-serif; background: white; } * { box-sizing: border-box; } .container { display: flex; height: 100vh; align-items: stretch; } .header { flex: 0 0 280px; padding: 15px; border-right: 1px dashed #aaa; box-shadow: 0 0 50px -18px black; overflow-wrap: break-word; overflow: auto; } .header > :first-child { margin-top: 0; } h1 small { font-size: 0.6em; } .meta-version::before { content: " v"; } .warning { padding: 3px 6px; border: 1px dashed black; border-color: #ef6969; background: #ffe2e2; } .header .warning { margin: 3px 0; } .actions { margin: 15px 0; } .actions label { max-width: fit-content; max-width: -moz-fit-content; display: flex; align-items: center; margin: 0.5em 0; } .actions label input { margin: 0 0.5em 0 0; flex: 0 0 auto; } .actions label span { min-width: 0; } .external { text-align: center; } .external > * { margin: 0 7.5px; } .code { padding: 2em; } .main { flex: 1 1 auto; overflow: hidden; overflow-wrap: break-word; min-width: 0; display: flex; flex-direction: column; } .main > :first-child { flex: 0 0 auto; } .main > :last-child { flex: 1 1 auto; min-height: 0; } .main .code, .main .CodeMirror { height: 100%; }