/* 躲猫猫 */ 
#maomao {
            position: fixed;
            bottom: 40px;
            right: -5px;
            width: 57px;
            height: 70px;
            background-image: url(https://cdn.jsdelivr.net/gh/muzihuaner/huancdn/img/20210808215127.svg);
            background-position: center;
            background-size: cover;
            background-repeat: no-repeat;
            transition: background .3s;
        }
#maomao:hover {
            background-position: 60px 50%;
        }