.bear {
    position: absolute;
    width: 200px;
    height: 100px;
    background: url('https://gitcode.net/m0_61979183/ye/-/raw/master/bear.png?') no-repeat;
    /* 我们元素可以添加多个动画， 用逗号分隔 */
    animation: bear .4s steps(8) infinite, move 3s forwards;
}

@keyframes bear {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: -1600px 0;
    }
}

@keyframes move {
    0% {
        left: 0;
    }
    100% {
        left: 40%;
        transform: translateX(-50%);
    }
}

.returnTop {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    position: fixed;
    left: 0.75rem;
    /* right: 0.75rem; */
    bottom: 10%;
    background: #03a9f4;
    text-align: center;
    line-height: 60px;
}

.returnTop i {
    color: #fff;
    font-weight: bold;
    font-size: 1.5rem;
}

#btn {
    display: none;
}

@font-face {
    font-family: "iconfont";
    /* Project id  */
    src: url('https://cdn.jsdelivr.net/gh/macagic/macagic.github.io/lib/iconfont.ttf?') format('truetype');
}

.iconfont {
    font-family: "iconfont" !important;
    font-size: 16px;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.icon-contact:before {
    content: "\e604";
}

.icon-gongjuxiang:before {
    content: "\e61d";
}

.icon-person:before {
    content: "\e6ab";
}

.icon-fanhuidingbu:before {
    content: "\e602";
}

.icon-csdn:before {
    content: "\e638";
}

.icon-connection:before {
    content: "\e851";
}

.icon-mail:before {
    content: "\e60e";
}

.icon-TOP:before {
    content: "\e605";
}

.icon-blogging:before {
    content: "\ec9d";
}

.icon-search:before {
    content: "\e67d";
}

.icon-bilibili:before {
    content: "\e609";
}