不定高度 文字垂直居中 css

.father{

    width: 293px;height: 195px;

    background: rgba(16,16,16,.4);

    text-align: center;

    padding: 72px 5px;

    font-size: 18px;

    color: #fff;

    font-weight: 300;

    transition: bottom .4s;

    box-sizing: border-box;

    display: table; 

}

.father span{

    vertical-align: middle;

    display: table-cell;

}

.father{

display:flex;

    flex-direction:row;

    justify-content:center;

    align-items:center;

}