.action img{
    max-height: 400px;
    height: 100%;
}
.slider__item .action{
    margin-bottom: 1.2rem;
    display: block;
    -webkit-transition: 0.3s;
    transition: 0.3s;
    padding-top: 115%;
    background-position: 50% 50%;
    background-size: cover;
    background-repeat: no-repeat;
}