et.css

*{
    margin:0;
    padding: 0;
  }

body {
    background-color: #191919;
    position: relative;
    height: 100vh;
}

.transition-grid {
    display: grid;
    grid-template-columns: 25px 5fr 2fr 1.5fr;
    grid-template-rows: 60px 1fr 1fr 25px;
    grid-gap: 0px;
    position: absolute;
    height: 100%;
    width: 100%;
    grid-auto-flow: none; 
  }

main {
    min-width: 0;
  }

.bg {
    position: absolute;
    height: 100vh;
    width: 100%;
    z-index: -2;
}



.main-hero-parent {
    grid-column: 2/3;
    grid-row: 2/4;
    height: 100%;
    overflow: hidden;
}

.main-hero1 {
    grid-column: 2/3;
    grid-row: 2/4;
    height: 100%;
    overflow: hidden;
    opacity: 1;
    cursor: e-resize;
}

.img1 {
    height: 100vh;
    margin-top: -40px;
    transition: .3s;
}

.main-hero2 {
    grid-column: 2/3;
    grid-row: 2/4;
    height: 100%;
    overflow: hidden;
    opacity: 0;
    transform: translateX(-100px);
    cursor: e-resize;
}

.img2 {
    height: 100vh;
    margin-left: -108px;
    transition: .3s;
}

.main-hero3 {
    grid-column: 2/3;
    grid-row: 2/4;
    height: 100%;
    overflow: hidden;
    opacity: 0;
    transform: translateX(-100px);
    cursor: e-resize;
}

.img3 {
    height: 100vh;
    margin-left: -95px;
    margin-top: -40px;
    transition: .3s;
}

.main-hero4 {
    grid-column: 2/3;
    grid-row: 2/4;
    height: 100%;
    overflow: hidden;
    opacity: 0;
    transform: translateX(-100px);
    cursor: e-resize;
}

.img4 {
    height: 100vh;
    margin-left: -95px;
    margin-top: -33px;
    transition: .3s;
}

.nav-sec {
    grid-column: 1/2;
    grid-row: 1/2;
    margin: 18px;
}

.nav-arrow {
    transition: .2s;   
}

.nav-arrow:hover{
    margin-left: -4px;
}

.project-text-grp{
    grid-column: 3/4;
    grid-row: 2/3;
    margin-left: 30px;
}

.project-text-grp p{
    font-family: 'Nanum Myeongjo';
    font-weight: 400;
    font-size: 15px;
    color: white;
    margin-top: 20px;
}

.pagination{
    grid-column: 2/3;
    grid-row: 4/5;
    font-family: 'Nanum Myeongjo';
    font-weight: 400;
    font-size: 10px;
    color: white;
    position: relative;
    margin-left: 20px;
    margin-bottom: 20px;
    bottom: 40px;
    filter: invert(100%);
}

.pagination .numerator{
    font-size: 20px;
    opacity: 1;
}

h2{
    font-family: 'Nanum Myeongjo';
    font-weight: 700;
    font-size: 45px;
    color: white;
}

h3{
    font-family: 'Montserrat';
    font-weight: 400;
    font-size: 8px;
    letter-spacing: 1px;
    color: #6E6E6E;
}



.sidebar{
    grid-column: 4/5;
    grid-row: 2/3;
    margin-left: 80px;
}

.sidebar h2{
    font-family: 'Nanum Myeongjo';
    font-weight: 400;
    font-size: 15px;
    color: white;
}



.next-button{
    grid-column: 3/5;
    grid-row: 3/4;
    font-size: 35px;
    bottom: 0px;
    right: 45px;
    position: absolute;
}

.next-button h2{
    font-size: 35px;
    transition: .3s;
}

.next-button h2:hover{
    margin-right: -15px;
}





html.is-animating .transition-grid{
    opacity: 0;
    transition: .5s;
    transform: translateX(100);
}

html.is-leaving .transition-grid{
    opacity: 0;
    transition: .5s;
    transform: translateX(100);
}


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

    *{
        margin:0;
        padding: 0;
      }

    body {
        background-color: #191919;
        position: absolute;
        height: 100vh;
        width: 100vw;
    }

    .transition-grid {
        display: grid;
        grid-template-rows: 10vh 80vh 5vh 20vh 1fr 20vh;
        grid-template-columns: 1fr 1fr;
        grid-gap: 0px;
        position: relative;
        height: 100%;
        width: 100%;
        grid-auto-flow: none;
      }

    .bg {
        position: fixed;
        width: 450vh;
        height: 500vh;
        top:-400px;
        left:0;
      }





    .pagination{
        grid-column: 1/4;
        grid-row: 3/4;
        font-family: 'Nanum Myeongjo';
        font-weight: 400;
        font-size: 10px;
        color: white;
        position: relative;
        margin-left: 20px;
        margin-bottom: 20px;
        bottom: 40px;
        filter: invert(100%);
    }


    .nav-sec {
        grid-column: 1/2;
        grid-row: 1/2;
        margin: 18px;
    }
    
    .nav-arrow {
        transition: .2s;   
    }
    
    .nav-arrow:hover{
        margin-left: -4px;
    }





    .project-text-grp{
        grid-column: 1/3;
        grid-row: 5/6;
        margin-top: 30px;
        margin-right: 30px;
    }

    .sidebar{
        grid-column: 1/3;
        grid-row: 4/5;
        margin-bottom: 50px;
        margin-right: 30px;
        margin-left: 30px;
    }

    .next-button{
        grid-column: 1/3;
        grid-row: 6/7;
        margin-top: 60px;
        margin-bottom: 30px;
        margin-left: 30px;
        margin-right: 30px;
        position: absolute;
    }
    

.next-button h2{
    font-size: 35px;
    transition: .3s;
}

.next-button h2:hover{
    margin-right: -15px;
}
    
    .main-hero1 {
        grid-column: 1/4;
        grid-row: 2/3;
        height: 100%;
        overflow: hidden;
        opacity: 1;
        cursor: e-resize;
    }
    
    .img1 {
        height: 90vh;
        margin-left: -0px;
        margin-top: -30px;
        transition: .3s;
    }
    
    .main-hero2 {
        grid-column: 1/4;
        grid-row: 2/3;
        height: 100%;
        overflow: hidden;
        opacity: 0;
        transform: translateX(-100px);
        cursor: e-resize;
    }
    
    .img2 {
        height: 90vh;
        margin-left: -205px;
        margin-top: -30px;
        transition: .3s;
    }
    
    .main-hero3 {
        grid-column: 1/4;
        grid-row: 2/3;
        height: 100%;
        overflow: hidden;
        opacity: 0;
        transform: translateX(-100px);
        cursor: e-resize;
    }
    
    .img3 {
        height: 90vh;
        margin-left: -205px;
        margin-top: -30px;
        transition: .3s;
    }
    
    .main-hero4 {
        grid-column: 1/4;
        grid-row: 2/3;
        height: 100%;
        overflow: hidden;
        opacity: 0;
        transform: translateX(-100px);
        cursor: e-resize;
    }
    
    .img4 {
        height: 90vh;
        margin-left: -230px;
        margin-top: -40px;
        transition: .3s;
    }

    .main-hero5 {
        grid-column: 1/4;
        grid-row: 2/3;
        height: 100%;
        overflow: hidden;
        opacity: 0;
        transform: translateX(-100px);
        cursor: e-resize;
    }
    
    .img5 {
        height: 90vh;
        margin-left: -120px;
        margin-top: -40px;
        transition: .3s;
    }

    .main-hero6 {
        grid-column: 1/4;
        grid-row: 2/3;
        height: 100%;
        overflow: hidden;
        opacity: 0;
        transform: translateX(-100px);
        cursor: e-resize;
    }
    
    .img6 {
        height: 90vh;
        margin-left: -180px;
        margin-top: -40px;
        transition: .3s;
    }

}