style1.css

.container{
    background-color: gray;
    display: flex;
    width: 600px;
    height: 600px;
    position: relative;
    margin: 0 auto;
}
.container_item{
    background-color: antiquewhite;
    display: flex;
    width: 400px;
    height: 260px;
    top: 340px;
    position: relative;
    margin: 0 auto;
}
.item{
    opacity: 1;
    display: flex;
    cursor: pointer;
    background-color:antiquewhite;
    height: 200px;
    width: 50px;
    top: 100px;
    padding: 30px;
    color: white;
    flex-direction: column-reverse;
    margin-left: 10px;
    margin: 0 auto;
}
.box{
    opacity: 1;
    cursor: pointer;
    height: 50px;
    width: 50px;
    color:black;
    text-align: center;
    align-items: center;
    line-height: 50px;
    margin: 0 auto;
    font-weight: bold;
}