@charset "UTF-8";

/* Versão mobile-first */ 

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

body {
    height: calc(100vh - 20px);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 1em;
    background: black url('../imgs/back-phone.jpg') center center no-repeat;
    background-size: cover;
}

main {
    background-color: rgba(255, 255, 255, 0.834);
    width: 90%;
    margin: auto;
    margin-top: 20px;
    border-radius: 10px;
    padding: 20px;
}

h1 {
    text-align: center;
    font-size: 2em;
    color: white;
    text-shadow: 2px 2px 2px rgba(0, 0, 0, 0.733);
}

img {
    display: block;
    margin: auto;
}

img:not(#phone) {
    display: none;
}