.presentation-list-item {
    display: block;
    position: relative;
}



.presentation-list-item .img {
    overflow: hidden;
    position: relative;
}

.presentation-list-item .img:after {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0), rgba(0,0,0,.5));
    content: '';
    -webkit-transition: height 300ms ease-out;
    -moz-transition: height 300ms ease-out;
    -ms-transition: height 300ms ease-out;
    -o-transition: height 300ms ease-out;
    transition: height 300ms ease-out;
}


.presentation-list-item:hover .img:after {
    height: 100%;
}

.presentation-list-item .img img {
    display: block;
    width: 100%;
}

.presentation-list-item .desc {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    padding: 24px 30px;
    color: #fff;
}

.presentation-list-item .desc a {
    color: #fff;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

.presentation-list-item .post-title {
    font-size: 28px;
    line-height: 1.25;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

.presentation-list-item .post-excerpt {
    font-size: 16px;
    font-weight: 500;
    line-height: 1.5;
}

.presentation-list-item .desc .post-title:hover,
.presentation-list-item .desc .post-excerpt:hover {
    text-decoration: underline;
}



@media screen and (max-width: 768px) {


    .presentation-list-item .post-title {
        font-size: 18px;
    }

    .presentation-list-item .post-excerpt {
        font-size: 14px;
    }

}