Испытание: пирамиды 100%

<svg width="540" height="290">
    <rect width="540" height="190" fill="skyblue"/>
    <rect width="540" height="110" y="190" fill="yellow"/>
    <polygon points="390,240 240,70 90,240" fill="goldenrod"/>
    <polygon points="250,260 350,150 450,260" fill="darkgoldenrod"/>
</svg>