html, body, div, section, nav, article, span, aside, header, footer, p, a, h1, h2, h3, h4, h5, h6, ul, ol, li, form, input, select, textarea, img, table, th, td, tr, video, iframe, menu, source{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
a{ text-decoration: none; }
body{
    font-family: "Roboto";
    font-size: 1.2em;
    background-color: #FFF;
}
h1, h2, h3{
    font-family: "Antonio";
}
.ajustar{
    clear: both;
}
.aviso{
    width: 80%;
    padding: 2%;
    margin: 2% auto;
    background-color: cornsilk;
    text-align: center;
}