.item {
   width: 64px;
    height: 64px;
    border: 1px solid;

    display: flex;
    justify-content: center;
    background: #8b8b8b;
    box-shadow: inset 1.5px 1.5px 0px rgba(55, 55, 55, 0.8), inset -2px -2px 0px #ffffff;
}