styles.css

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&display=swap');
body{
    font-family: 'Bebas Neue', sans-serif;
    background-color: whitesmoke;
    margin: 0;
}
h1{
    text-align: center;
    margin: 25px auto 15px auto;
    letter-spacing: 5px;
    font-size: 2.75rem;
}
.loader{
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(255,255,255,0.8);
}
.loader img{
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.image-container{
    margin: 10px 30%;
}
.image-container img{
    width: 100%;
    margin-top: 5px;
}
.scrollUp{
    padding: 5px;
    background: #333;
    position: fixed;
    bottom: 50px;
    left: 50px;
}
.scrollUp:hover{
    cursor: pointer;
}
.scrollUp i{
    color: #fff;
    font-size: 1.2rem;
}
@media screen and (max-width: 768px){
    .image-container{
        margin: 10px 5%;
    }
}