/* 库位组 */
.stock-group .item {
    float: left;
    border-top: 2px solid #333;
    border-bottom: 2px solid #333;
    border-left: 1px solid #333;
    border-right: 1px solid #333;
}
.stock-group .item:first-child {
    border-left: 2px solid #333;
}
.stock-group .item:last-child {
    border-right: 2px solid #333;
}
.stock-group::after, .stock-group::before {
    content: "";
    display: table;
    clear: both;
}
button.item {
    padding: 1px 1px 1px 1px;
    width: 22px;
    height: 22px;
    outline: none;
    cursor: pointer;
    color: #333;
    background-color: transparent;
    transition: 0.4s;
}
button.item:hover {
    background-color: #333;
    color: #fff;
}