triangles.html

<link rel="stylesheet" href="css/triangles.css">
<div class="wrapper">
    <svg class="triangle-canvas" viewBox="0 0 1000 1000" xmlns="http://www.w3.org/2000/svg">
        <polygon class="triangle triangle-1" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-2" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-3" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-4" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-5" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-6" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-7" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-8" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-9" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-10" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-11" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-12" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-13" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-14" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-15" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-16" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-17" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-18" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-19" points="500,200 759,650 241,650" />
        <polygon class="triangle triangle-20" points="500,200 759,650 241,650" />
    </svg>
</div>