style.css

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body {
    background-color: #f2bd2f;
}
.container {
    height: 31.25em;
    width: 31.25em;
    position: absolute;
    transform: translate(-50%, -50%);
    top: 50%;
    left: 50%;
}
.shell {
    position: absolute;
    height: 10.62em;
    width: 17.5em;
    background-image: radial-gradient(#9b4a2a 40%, transparent 40%), radial-gradient(#833825 40%, transparent 40%);
    background-color: #703225;
    background-position: 0 0, 5em 5em;
    background-size: 10em 10em;
    border-radius: 50% 50% 10% 10%/75% 75% 10% 10%;
    top: 9.37em;
    left: 4.37em;
}
.shell:before {
    position: absolute;
    content: "";
    height: 4.37em;
    width: 4.37em;
    background-color: #005f37;
    border-radius: 4.37em 4.37em 0 0;
    bottom: 0;
    right: 0;
}
.neck {
    height: 3.75em;
    width: 7.5em;
    background-color: #009f40;
    border-radius: 5em 0 9.37em 5em;
    position: absolute;
    left: 14.06em;
    top: 7.5em;
}
.neck:before {
    content: "";
    position: absolute;
    height: 1.25em;
    width: 4.37em;
    background-color: #009f40;
    top: -1.18em;
    left: 3.12em;
}
.neck::after {
    content: "";
    position: absolute;
    height: 5.62em;
    width: 5.62em;
    background-color: #009f40;
    bottom: 4.87em;
    left: 3.12em;
    border-radius: 2.5em 2.5em 1.87em 0;
}
.belt {
    background: linear-gradient(
        to right,
        #e9a100 30%,
        #e77702 30%,
        #e77702 90%,
        #e9a100 90%
    );
    height: 1.25em;
    width: 5em;
    position: absolute;
    top: 6.56em;
    left: 16.87em;
}
.leg {
    background-color: #009f40;
    height: 4.37em;
    width: 2.5em;
    position: absolute;
    border-radius: 1.25em 1.25em 0 0;
    top: 18.75em;
}
.leg::before {
    content: "";
    height: 1.25em;
    width: 0.93em;
    position: absolute;
    background-color: #d5cd8e;
    bottom: -0.06em;
    left: -0.06em;
    border-radius: 0.62em 0.62em 0 0;
    box-shadow: 0.87em 0 #d5cd8e;
}
.leg-1 {
    left: 6.25em;
}
.leg-2 {
    left: 15.31em;
}
.leg-3 {
    background-color: #005f37;
    left: 9.37em;
}
.leg-4 {
    background-color: #005f37;
    left: 20em;
}
.eye {
    position: absolute;
    background-color: #43484d;
    height: 0.62em;
    width: 1.25em;
    border-radius: 0.62em 0.62em 0 0;
    top: 3.12em;
    left: 18.75em;
}
@media screen and (min-width: 800px) {
    .container {
        font-size: 1.4em;
    }
}