@media(min-width: 992px) {
    header.masthead {
        height: 100vh;
        min-height: 650px;
        padding-top: 0;
        padding-bottom: 0
    }
    header.masthead h1,
    header.masthead .h1 {
        font-size: 3rem
    }
}

@media(min-width: 1200px) {
    header.masthead h1,
    header.masthead .h1 {
        font-size: 4rem
    }
}

.service-box {
    max-width: 400px
}

.portfolio-box {
    position: relative;
    display: block;
    max-width: 650px;
    margin: 0 auto
}

.portfolio-box .portfolio-box-caption {
    position: absolute;
    bottom: 0;
    display: block;
    width: 100%;
    height: 100%;
    text-align: center;
    opacity: 0;
    color: #fff;
    background: rgba(240, 95, 64, .9);
    transition: all .2s
}

.portfolio-box .portfolio-box-caption .portfolio-box-caption-content {
    position: absolute;
    top: 50%;
    width: 100%;
    transform: translateY(-50%);
    text-align: center
}

.portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-category,
.portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-name {
    padding: 0 15px;
    font-family: "Open Sans", "Helvetica Neue", Arial, sans-serif
}

.portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-category {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase
}

.portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-name {
    font-size: 18px
}

.portfolio-box:hover .portfolio-box-caption {
    opacity: 1
}

.portfolio-box:focus {
    outline: none
}

@media(min-width: 768px) {
    .portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-category {
        font-size: 16px
    }
    .portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-name {
        font-size: 22px
    }
}