.box .txt{position:absolute;left:0;right:0;bottom:13px;width:100%;z-index:3;background:rgb(0 50 104 / .6);display:flex;justify-content:center;align-items:center;transition:.5s;}
.box .con:hover .txt{height:100%;}
.box .tit{text-align:center;border: 0;}
.box .tit span{font-size:17px;font-weight:700;letter-spacing:0;color:#fff;text-align:center;text-overflow:ellipsis;white-space:nowrap;overflow:hidden;line-height: 45px;}