Stair

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 60 60"
>
    <style>
        .st1 {
            fill: #bb7a5b;
        }
        .st2 {
            fill: #e7eef9;
        }
        .st3 {
            fill: #52c392;
        }
        .st4 {
            fill: #e3334f;
        }
        .st5 {
            fill: #f4d2b1;
        }
        .st6 {
            fill: #544f55;
        }
        .st7 {
            fill: #b22244;
        }
        .st8 {
            fill: #f9d403;
        }
        .st9 {
            fill: #c4e0ff;
        }
        .st10 {
            fill: #2ba4f5;
        }
        .st11 {
            fill: none;
            stroke: #000;
            stroke-width: 3.7008;
            stroke-miterlimit: 10;
        }
        .st12 {
            fill: #fff;
        }
    </style>
    <path
        d="M9.65 50.35h40.7V9.65h-11.1v7.4h-7.4v7.4h-7.4v7.4h-7.4v7.4h-7.4z"
        fill="#d8ac8b"
    />
    <path
        d="M52.2 52.2H7.8V37.4h7.4V30h7.4v-7.4H30v-7.4h7.4V7.8h14.8v44.4zm-40.7-3.7h37v-37h-7.4v7.4h-7.4v7.4h-7.4v7.4h-7.4v7.4h-7.4v7.4z"
    />
</svg>