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

body, html {
    height: 100%;
    background-color:#00C0DA
}

.contenedor {
    position: relative;
    height: 100vh;
}

img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 100%;
    height: auto;
}