.portfolio {
    font-family: 'avantGardeDemiBT', Arial;
    cursor: default;
}
.portfolio .overlay {
    position: absolute;
    left: 0px;
    bottom: 0px;
    background-color: #111;
    background: rgba(0, 0, 0, 0.8);
    text-align: left;
    color: #fff;
    display: none;
}
.portfolio .overlay .title {
    font-size: 1.7rem;
    font-weight: bold;
    display: block;
    margin-bottom: 20px;
    margin-left: 10px;
    margin-top: 10px;
}
.portfolio .overlay .description {
    padding-left: 10px;
    padding-right: 10px;
    color: #fff;
}
.portfolio .overlay .tags-container {
    margin-left: 5px;
    margin-top: 30px;
}
.portfolio .overlay .tags-container span {
    background-color: #2dceb8;
    min-width: 50px;
    text-align: center;
    color: #fff;
    font-size: 1.3rem;
    font-weight: bold;
    border-radius: 3px;
    margin: 5px;
    padding: 5px;
}
.portfolio .overlay .link_container {
    position: absolute;
    width: 100%;
    height: 33px;
    bottom: 20px;
    text-align: center;
}
.portfolio .overlay .link_container a {
    width: 50%;
    height: 35px;
    display: inline-block;
    border-radius: 5px;
    color: #fff;
    background-color: #888;
    text-align: center;
    text-decoration: none;
    padding-top: 8px;
    text-transform: uppercase;
    box-shadow: 0 -33px 28px rgba(0, 0, 0, 0.3) inset;
    -webkit-transition: all .3s ease-in-out;
    -moz-transition: all .3s ease-in-out;
    -o-transition: all .3s ease-in-out;
    transition: all .3s ease-in-out;
}
.portfolio.overlay a:hover {
    background-color: #aaa;
}
.portfolio .card_container {
    position: relative;
    float: left;
    margin-left: 20px;
    margin-top: 40px;
}

.portfolio .card {
    width: 100%;
    height: 100%;
}
.portfolio .face {
    position: absolute;
    width: 100%;
    height: 100%;
}
.portfolio .face.back {
    display: none;
    background-color: #eaeaea;
    text-align: left;
}