.header {
    height: 80px;
    box-shadow: 0 2px 10px 0 rgb(52 52 52 / 10%);
    background: #fff;
    line-height: 80px;
    box-sizing: border-box;
}
img{
    margin-top: 20px;
    margin-right: 40px;
}

.logo ul {}
.logo ul li {
    float: left;
}
.logo ul li a {}