*{box-sizing:border-box}
html,body{height:100%;margin:0;background:#fff}
.lab{display:grid;grid-template-columns:1fr 1fr;height:100vh}
.code-block{display:grid;grid-template-columns:52px 1fr;min-width:0;background:#17222d;overflow:hidden}
.code-block pre,.code-block textarea{margin:0;padding-top:22px;font:14px/1.55 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre;tab-size:4}
.code-block pre{padding-right:12px;color:#71889a;text-align:right;user-select:none;overflow:hidden}
.code-block textarea{width:100%;height:100%;padding-left:16px;padding-right:22px;color:#e4eef4;background:#17222d;border:0;outline:0;resize:none;overflow:auto}
.image-block{display:flex;min-width:0;min-height:0;align-items:center;justify-content:center;background:#fff;overflow:hidden}
.image-block canvas{display:block;width:100%;height:100%;object-fit:contain;background:#fff}
@media(max-width:760px){.lab{grid-template-columns:1fr;grid-template-rows:50% 50%}.code-block pre,.code-block textarea{font-size:12px}}