.portfolio-hero-wrap{
    background-image: url(../images/portfolio/hero-wrap-bg.png);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}
.gallery {
    -webkit-column-count: 3;
    -moz-column-count: 3;
    column-count: 3;
    -webkit-column-width: 33%;
    -moz-column-width: 33%;
    column-width: 33%; }
    .gallery .pics {
    -webkit-transition: all 350ms ease;
    transition: all 350ms ease; }
    .gallery .animation {
    -webkit-transform: scale(1);
    -ms-transform: scale(1);
    transform: scale(1); }
    
    @media (max-width: 450px) {
    .gallery {
    -webkit-column-count: 1;
    -moz-column-count: 1;
    column-count: 1;
    -webkit-column-width: 100%;
    -moz-column-width: 100%;
    column-width: 100%;
    }
    }
    
    @media (max-width: 400px) {
    .btn.filter {
    padding-left: 1.1rem;
    padding-right: 1.1rem;
    }
    }

    .gallery .pics{
        position: relative;
    }
    .gallery .pics .port-desc{
        position: absolute;
        top: 0px;
        left: 0px;
        right: 0;
        bottom: 0;
        background-color: rgba(153, 193, 42, 0.8);
        padding: 30px;
        display: none;
        transition: all 0.3s;
    }
    .gallery .pics:hover .port-desc{
        display: block;
    }
    .port-desc p{
        color: #ffffff;
        font-size: 18px;
    }
    .portfolio-tabs .btn{
        border: 1px solid #dcdcdc;
        margin-right: 5px;
        font-size: 18px;
        text-transform: uppercase;
    }

    .portfolio-tabs .btn:focus{
        background-color: #99c12a;
        color: #ffffff;
    }
    @media only screen and (max-width: 768px){
        .gallery{
            -webkit-column-count: 2;
            -moz-column-count: 2;
            column-count: 2;
            -webkit-column-width: 50%;
            -moz-column-width: 50%;
            column-width: 50%;
        }
        .gallery .pics .port-desc{
            padding: 15px;
        }
    }
    @media only screen and (max-width: 575px){
        .gallery{
            -webkit-column-count: 1;
            -moz-column-count: 1;
            column-count: 1;
            -webkit-column-width: 100%;
            -moz-column-width: 100%;
            column-width: 100%;
        }
        .gallery .pics img{
            width: 100%;
        }
    }
    @media only screen and (max-width: 530px){
        .portfolio-tabs{
            flex-wrap: wrap;
        }
        .portfolio-tabs .btn{margin-bottom: 10px;}
    }