* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #000;
}

img {
    width: 100vw;
    height: 100vh;
    object-fit: fill;
    
    animation: wide-breath 10s infinite alternate ease-in-out;
}

@keyframes wide-breath {
    from { transform: scaleX(1); }
    to { transform: scaleX(1.2); }
}