Boxes

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 512 512"
>
    <linearGradient
        id="a"
        x1="256"
        x2="256"
        y1="512"
        y2="0"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#00b59c" />
        <stop offset="1" stop-color="#9cffac" />
    </linearGradient>
    <linearGradient
        id="b"
        x1="256"
        x2="256"
        y1="372"
        y2="0"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#c3ffe8" />
        <stop offset=".997" stop-color="#f0fff4" />
    </linearGradient>
    <path
        fill="url(#a)"
        d="M240 15v210c0 8.284-6.716 15-15 15H15c-8.284 0-15-6.716-15-15V15C0 6.716 6.716 0 15 0h67.5L120 20l37.5-20H225c8.284 0 15 6.716 15 15zM497 0h-67.5L392 20 354.5 0H287c-8.284 0-15 6.716-15 15v210c0 8.284 6.716 15 15 15h210c8.284 0 15-6.716 15-15V15c0-8.284-6.716-15-15-15zM225 272h-67.5L120 292l-37.5-20H15c-8.284 0-15 6.716-15 15v210c0 8.284 6.716 15 15 15h210c8.284 0 15-6.716 15-15V287c0-8.284-6.716-15-15-15zm272 0h-67.5L392 292l-37.5-20H287c-8.284 0-15 6.716-15 15v210c0 8.284 6.716 15 15 15h210c8.284 0 15-6.716 15-15V287c0-8.284-6.716-15-15-15z"
    />
    <path
        fill="url(#b)"
        d="M82.5 85V0h75v85c0 8.284-6.716 15-15 15h-45c-8.284 0-15-6.716-15-15zm347 0V0h-75v85c0 8.284 6.716 15 15 15h45c8.284 0 15-6.716 15-15zm-272 272v-85h-75v85c0 8.284 6.716 15 15 15h45c8.284 0 15-6.716 15-15zm272 0v-85h-75v85c0 8.284 6.716 15 15 15h45c8.284 0 15-6.716 15-15z"
    />
</svg>