.introduce-via img {
    width: 70px !important;
    height: 70px !important;
    padding: 1px !important;
    transition: transform 1s ease-out !important;
    border: none !important;
    box-shadow: none !important;

body{
    background-image: url("https://cnblog-1319619106.cos.ap-shanghai.myqcloud.com/2%28P7_%5D~%25ZT1VCX%7D0C4C%40R851.png");
    background-position: initial;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-origin: initial;
    background-clip: initial;
    height:100%;
    width:100%;
}