style.css

@import url('https://fonts.googleapis.com/css2?family=Cairo+Play&family=Oswald&display=swap');

html {
    box-sizing: border-box;
}

body{
    min-height: 100vh;
    margin: 0;
}
h1{
    font-size: 2.5rem;
    letter-spacing: 0.3rem;
    text-align: center;
    margin-bottom: 2rem;
}
.header{
    position: relative;
}

.loader{
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.loader img{
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 100px;
    height: 100px;
}

.image-container{
    margin: 0 20%;
}

.image-container img{
    width: 100%;
    margin: .5rem;
}

@media screen and (max-width: 850px){
    h1{
        font-size: 2rem;
        letter-spacing: 0.2rem;
    }

    .image-container{
        margin: 0 5%;
    }

    .image-container img{
        margin: .2rem;
    }
}