main {
    width: 100%;
    height: 100%;
    background-color: #fff;
    margin-top: 70px;
    margin-bottom: 20px;
    justify-content: center;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    z-index: 100;
}

main h1 {
    width: 100%;
    flex-basis: 100%;
    margin-top: 10px;
    font-size: 4rem;
    text-align: center;
}

.index-portfolio-box {
    width: 500px;;
    height: 100px;
    background-color: #000;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    margin: 20px;
    transition: all ease-in-out 200ms;
}

.index-portfolio-box h3 {
    color: #fff;
    transition: all ease-in-out 200ms;
}

.index-portfolio-box:hover h3 {
    color: rgb(255, 255, 155);
    text-shadow: 1px 2px 0px #000;
}

.index-portfolio-box:nth-child(2) {
    background-image: url(../img/3dmodeling.png);
}

.index-portfolio-box:nth-child(3) {
    background-image: url(../img/animation.png);
}

.index-portfolio-box:nth-child(4) {
    background-image: url(../img/curriculumdevelopment.png);
}

.index-portfolio-box:nth-child(5) {
    background-image: url(../img/gamedevelopment.png);
}

.index-portfolio-box:nth-child(6) {
    background-image: url(../img/graphicdesign.png);
}

.index-portfolio-box:nth-child(7) {
    background-image: url(../img/illustration.png);
}

.index-portfolio-box:nth-child(8) {
    background-image: url(../img/photography.png);
}

.index-portfolio-box:nth-child(9) {
    background-image: url(../img/videoediting.png);
}

.index-portfolio-box:nth-child(10) {
    background-image: url(../img/videoproduction.png);
}

.index-portfolio-box:nth-child(11) {
    background-image: url(../img/writing.png);
}

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

    main {
        margin-top: 110px;
    }

}