.selectsubsystem {
    width: 208px;
    height: 79px;
    color: #fff;
    padding: 20px;
    box-sizing: border-box;
    background: rgba(83, 86, 128, 1);
    cursor: pointer;
}

.selectsubsystem>span {
    display: inline-block;
    width: 100%;
    height: 100%;
    line-height: 36px;
    background: #313356;
    text-align: center;
    font-size: 16px;
    color: #dbd8be;
}