main.css

/* 进行初始化 */
html,
body,
ul,
ol {
    margin: 0;
    padding: 0;
}

:before, :after {
    content: '';
    position: absolute;
}

body {
    background: #FC999E;
}

.baymax-shadow, .baymax-body:before, .baymax-body:after, .baymax-leg:before, .baymax-leg:after, .baymax-arm:after {
    background: #efe7e7;
    border: 1px solid #EAEAEA;
    border-radius: 50%;
    }

.baymax-bg, .baymax-head, .baymax-body, .baymax-body .baymax-heart, .baymax-leg, .baymax-arm {
    background: whitesmoke;
    border: 1px solid #EAEAEA;
}

.baymax {
    position: relative;
    margin: 60px auto;
    width: 300px;
    height: 300px;
}

.baymax-head {
    position: absolute;
    left: 50%;
    margin-left: -21px;
    width: 42px;
    height: 28px;
    border-radius: 50%;
    transform: rotate(5deg);
    z-index: 3;
    overflow: hidden;
    box-shadow: 0 6px 8px -5px rgba(128, 128, 128, 0.75), inset 0 -6px 8px -5px rgba(204, 204, 204, 0.5);
}
.baymax-head .head-highlight {
    position: absolute;
    top: 12%;
    right: 25%;
    width: 45%;
    height: 1%;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 18px 9px #ffffff, 0 0 0 0 transparent;
}

.baymax-head .baymax-eyes {
    position: relative;
    top: 10px;
    left: 50%;
    transform: translateX(-10px);
    height: 1px;
    width: 20px;
    background: #333333;
}

.baymax-head .baymax-eyes:before, 
.baymax-head .baymax-eyes:after {
    top: -3px;
    width: 6px;
    height: 6px;
    background: #333333;
    border-radius: 50%;
}

.baymax-head .baymax-eyes:before {
    left: -2px;
}

.baymax-head .baymax-eyes:after {
    right: -2px;
}

.baymax-body {
    position: absolute;
    top: 18.66667px;
    left: 50%;
    transform: translateX(-62px);
    width: 124px;
    height: 180px;
    /* “/”前的四个数值表示圆角的水平半径，后面四个值表示圆角的垂直半径 */
    border-radius: 50% 50% 50% 50%/60% 60% 40% 40%;
    overflow: hidden;
    z-index: 2;
}

.baymax-body .body-highlight {
    position: absolute;
    top: 20%;
    right: 40%;
    width: 0%;
    height: 50%;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 45px 25px #ffffff, 0 0 0 0 transparent;
}

.baymax-body .baymax-heart {
    position: absolute;
    top: 35px;
    right: 30%;
    height: 12px;
    width: 12px;
    border-radius: 50%;
}

.baymax-body:before, 
.baymax-body:after {
    top: 55px;
    width: 15px;
    height: 40px;
}

.baymax-body:before {
    left: -8px;
    transform: rotate(15deg);
}

.baymax-body:after {
    right: -8px;
    transform: rotate(-15deg);
}

.baymax-leg {
    position: absolute;
    top: 165px;
    width: 48px;
    height: 85px;
    overflow: hidden;
    z-index: 1;
}

.baymax-leg:before {
    top: -50px;
    height: 100px;
    width: 30px;
}

.baymax-leg:after {
    bottom: -22px;
    height: 30px;
    width: 60px;
}
.baymax-leg .leg-highlight {
    position: absolute;
    top: 40%;
    width: 1%;
    height: 38%;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 16px 7px rgba(255, 255, 255, 0.8), 0 0 0 0 transparent;
}

.baymax-leg .crosspart {
    content: "";
    position: absolute;
    top: 0;
    width: 48px;
    height: 85px;
    box-shadow: inset 0px 0px 15px 0px #cccccc, 0 0 0 0 transparent;
}

.baymax-left-leg {
    left: 50%;
    margin-left: -50px;
    border-radius: 20% 0 30% 50%/50% 0 30% 50%;
}

.baymax-left-leg:before {
    left: -20px;
}

.baymax-left-leg:after {
    left: 0;
}

.baymax-left-leg .leg-highlight {
    left: 25px;
    transform: rotate(-5deg);
}

.baymax-right-leg {
    right: 50%;
    margin-right: -50px;
    border-radius: 0 20% 50% 30%/0 50% 50% 30%;
}

.baymax-right-leg:before {
    right: -20px;
}

.baymax-right-leg:after {
    right: 0;
}

.baymax-right-leg .rleg-highlight {
    right: 20px;
    transform: rotate(5deg);
}

.baymax-arm {
    position: absolute;
    top: 28px;
    height: 145px;
    width: 40px;
    overflow: hidden;
    z-index: 1;
}

.baymax-arm:after {
    top: 60px;
    height: 50px;
    width: 25px;
}

.baymax-arm .arm-highlight {
    position: absolute;
    top: 25%;
    width: 1%;
    height: 65%;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 16px 7px rgba(255, 255, 255, 0.8), 0 0 0 0 transparent;
}

.baymax-left-arm {
    left: 65px;
    transform: rotate(25deg);
    border-radius: 90px 20px 20px 90px/200px 40px 40px 200px;
}

.baymax-left-arm:after {
    left: -20px;
}

.baymax-left-arm .larm-highlight {
    left: 30%;
}

.baymax-right-arm {
    right: 65px;
    transform: rotate(-25deg);
    border-radius: 20px 90px 90px 20px/40px 200px 200px 40px;
}

.baymax-right-arm:after {
    right: -20px;
}

.baymax-right-arm .rarm-highlight {
    right: 30%;
}