body {
    color: #000;
    font-family: 'PingFang SC','Microsoft YaHei','Helvetica Neue','Helvetica','Arial',sans-serif;
    font-size: 13px;
    min-height: 101%;
    background:top center no-repeat #b4e4ee; 
}
.navbar {
    display: none;
    flex-direction: column;
    align-items: center;
    background-color: #b4e4ee;
    padding-left: 40px;
    padding-right: 40px;
    padding-top: 5px;
    padding-bottom: 5px;

}