body { font: 16px/1.5 system-ui, sans-serif; margin: 2rem 1rem; background: #fff; color: #222; }
.ok { color: #1a7f37; font-weight: 600; }
.css-check { font-size: 0; }
.css-check::after { content: "OK"; font-size: 16px; color: #1a7f37; font-weight: 600; }
img { display: block; margin-top: 1rem; }