.container{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}

.desc{
    text-align: center;
    width: 50%;
    margin-bottom: 40px;
cursor: pointer;
}

.desc img{
    width: 28vw;
    height: 21vw;
    margin-bottom:10px;
}

.MyModal{
    position:fixed;
    top:0;
    left:0;
    background:rgba(0,0,0,0.7);
    z-index:1040;
    width:100%;
    height:100%;
    display: none;
}

.modaImg{
    width: 40%;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

.tip{
   text-align:left;
   margin-bottom:10px;
}