/* RESET GENERAL */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    height: 100svh;
    width: 100%;
}

/* página completa */
main {
    margin: 0;
    padding: 0;
    background: #050505;
    font-family: Arial, sans-serif;
    height: 100svh;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
    place-content: center;
}

img,
svg,
video,
canvas,
audio,
iframe,
embed,
object {
    display: block;
    vertical-align: middle;
}

.fondo {
    margin: auto;
    max-height: 100%;
    max-width: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}