@media screen and (max-width: 1000px) {
    .hidden {
        display: none;
    }
    
    footer {
        margin: 0 10%;
    }

    #desktop-nav {
        display: none;
    }
    
    #mobile-nav {
        display: flex;
    }

    .section_pic-container {
        position: absolute;
        width: 100vw;
        height: 100vh;
    }

    .section_pic-container:hover #picture-hover {
        display: none;
    }

    .section_pic-container #picture-normal {
        transition: opacity 2s ease-in-out;
    }
}