ul{
    list-style: none;
    padding: 0;
    margin: 0;
}
body{
    margin: 0;
    padding: 0;
    font-size: 0.9rem;
    background: #eee;
}
.foor_ul{
    display: flex;
    justify-content: space-around;
    text-align: center;
    color: #666;
    font-size: 0.95rem;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #fff;
    height: 3.5rem;
    align-items: center;
    font-size: 0.8rem;
}
.foor_ul img{
    width: 1.5rem;
    height: 1.5rem;
}
.factive{
    color: #FF7063;
}
.arrow{
    color: #777;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.arrow::after{
    content: "";
    width: 0.5rem;
    height: 0.5rem;
    border-left: 1px solid #777;
    border-top: 1px solid #777;
    transform: rotate(135deg)
}