.tipcard{
    background-image: url('../images/tipcard.png');
    background-size: 100% 100%;
    position: fixed;
    left: 50%;
    top: 50%;
    width: 300px;
    height: 400px;
    margin-left: -150px;
    margin-top: -200px;
    background-color: #FFFFFF;
    border: none;
    display: none;
}
.tipcard:hover{
    transform: scale(1.03);
    transition: all .3s;
}