.rennab-dropdown
{
    display: block;
    height: 90px;
    margin-bottom: 20px;
    position: relative;
}

.rennab-dropdown__content
{
    position: absolute;
    top: 0;
    left: 0;
    z-index: 11;
    height: 90px;
    overflow: hidden;
    transition: height 0.5s;
}

.rennab-dropdown:not(.rennab-dropdown_irresponsive):hover .rennab-dropdown__content,
.rennab-dropdown.rennab-dropdown_active .rennab-dropdown__content
{
    height: 400px;
}

.rennab-dropdown__img {
    width: 100%;
}