:after, :before { content: '焔'; position: absolute; font-size: 61.8vmin; font-weight: bold; background-clip: text; text-fill-color: transparent; text-stroke: #f00a; text-stroke-width: 3px; color: transparent; text-shadow: 0 0 50vmin #f00; } :after { @use: var(--filter-after); background: @multi(100, ( linear-gradient(transparent, #ff5722) @r(0, 100%, .1) @r(0, 100%, .1) / 1px @r(50%) no-repeat )); }