html {
            box-sizing: border-box;
       }
       body {
            background-color: black;
            color: white;
            margin: 0;
            text-align: center;
        }
        h1 {
            margin: 20px auto;
            font-family: Helvetica, sans-serif;
        }
        #image-title {
            display: none;
        }        
        nav, collection_nav {
            max-width: 500px;
            display: flex;
            margin: auto;
            padding: 0;
        }
        .nav_element {
            margin: auto;
            background-color: black;
            width: 33%;
            height: 30px;
        }
        a {
            color: white;
            text-decoration: none;
            font-weight: bold;
        }
        .mobile_nav {
            width: 50px;
            height: 100vh;
            background-color: pink;
            position: absolute;
            top: 0;
            opacity: 0; 
        }
        #mobile_nav_left {
            left: 0;
        }
        #mobile_nav_right {
            right: 0;
        }
        
        
        
        div.images {
            max-width: 410px;
            margin: auto;
            display: flex;
            flex-direction: row;
            flex-wrap: wrap;
            justify-content: center;
        }
        .image_element {
            box-sizing: border-box;
            padding: 2%;
            width: 50%;
        }
        img {
            max-width: 100vw;
            max-height: 100vh;
            object-fit: contain;
         }



@media (min-width: 600px) {
    #image-title {
        display: block;
        padding: 0.5em 0 0 0;
    }
    .mobile_nav {
        display: none;
    }
    nav {
        padding: 0 0 1em;
    }
    div.images {
        max-width: 1024px;
    }
    .image_element { 
        width: auto;
        padding: 10px;
    }
    .collection_nav {
        max-width: 1024;
    }
}