Letter Tiles
<button class="b50" aria-label="Hello"><span style="--i:0">H</span><span style="--i:1">E</span><span style="--i:2">L</span><span style="--i:3">L</span><span style="--i:4">O</span></button><button class="b50" aria-label="Hello"><span style="--i:0">H</span><span style="--i:1">E</span><span style="--i:2">L</span><span style="--i:3">L</span><span style="--i:4">O</span></button>