* {
    margin: 0;
    padding: 0;
    outline: none;
    box-sizing: border-box;
    text-decoration: none;
}

.box {
    width: 100%;
    display: flex;
    justify-content: center;
}

.mt20 { margin-top: 20px; }
.w100 { width: 100%;}
.banner { width: 100%; object-fit: cover; height: 235px; }