body {
    background-color: #fff;
    margin: auto;
}

.a {
    background-color: #896055;
    position:  absolute;
    width: 19vh;
    height: 7vh;
    left: 2.5vh;
    top: 4vh;
    border-radius: 1vh;
}

.b {
    background-color: #896055;
    position:  absolute;
    width: 7.5vh;
    height: 25vh;
    left: 10.5vh;
    top: 0vh;
    border-radius: 1vh;
}

.c {
    background-color: #896055;
    position:  absolute;
    width: 7vh;
    height: 7vh;
    left: 23.5vh;
    top: 4vh;
    border-radius:50%
}

.d {
    background-color: #896055;
    position:  absolute;
    width: 7.5vh;
    height: 6vh;
    left: 6vh;
    top: 14vh;
}

.e {
    background-color: #896055;
    position:  absolute;
    width: 6vh;
    height: 7.5vh;
    left: 0vh;
    top: 14vh;
    border-radius: 100% 0 0 0;
}

.f {
    background-color: #896055;
    position:  absolute;
    width: 6vh;
    height: 3vh;
    left: 0vh;
    top: 21vh;
}

.g {
    background-color: #896055;
    position:  absolute;
    width: 6vh;
    height: 6vh;
    left: 0vh;
    top: 24vh;
    border-radius: 0 0 0 100%;
}

.h {
    background-color: #896055;
    position:  absolute;
    width: 6vh;
    height: 6vh;
    left: 6vh;
    top: 24vh;
}

.i {
    background-color: #896055;
    position:  absolute;
    width: 6.5vh;
    height: 6vh;
    left: 11.5vh;
    top: 24vh;
    border-radius: 0 0 100% 0;
}

.j {
    background-color: #896055;
    position:  absolute;
    width: 5vh;
    height: 6vh;
    left: 21.5vh;
    top: 14vh;
    border-radius: 1vh;
}

.k {
    background-color: #896055;
    position:  absolute;
    width: 6vh;
    height: 6vh;
    left: 25.5vh;
    top: 14vh;
    border-radius: 0 100% 0 0;
}

.l {
    background-color: #896055;
    position:  absolute;
    width: 6vh;
    height: 11vh;
    left: 25.5vh;
    top: 19vh;
    border-radius: 1vh;
}

.edge-1 {
    background-color: #896055;
    position:  absolute;
    width: 1vh;
    height: 1vh;
    left: 6vh;
    top: 20vh;
}

.edge-2 {
    background-color: #fff;
    position:  absolute;
    width: 1vh;
    height: 1vh;
    left: 6vh;
    top: 20vh;
    border-radius: 100% 0 0 0;
}

.edge-3 {
    background-color: #896055;
    position:  absolute;
    width: 1vh;
    height: 1vh;
    left: 6vh;
    top: 23vh;
}

.edge-4 {
    background-color: #fff;
    position:  absolute;
    width: 1vh;
    height: 1vh;
    left: 6vh;
    top: 23vh;
    border-radius: 0 0 0 100%;
}

.edge-5 {
    background-color: #896055;
    position:  absolute;
    width: 1vh;
    height: 1vh;
    left: 9.5vh;
    top: 20vh;
}

.edge-6 {
    background-color: #fff;
    position:  absolute;
    width: 1vh;
    height: 1vh;
    left: 9.5vh;
    top: 20vh;
    border-radius: 0 100% 0 0;
}

.edge-7 {
    background-color: #896055;
    position:  absolute;
    width: 1vh;
    height: 1vh;
    left: 24.5vh;
    top: 20vh;
}

.edge-8 {
    background-color: #fff;
    position:  absolute;
    width: 1vh;
    height: 1vh;
    left: 24.5vh;
    top: 20vh;
    border-radius: 0 100% 0 0;
}