body
{
    padding: 0;
    margin: 0;
    
    font-family: sans-serif;
    overflow-x: hidden;
}

div.major
{
    width: auto;
    position: relative;
    
    padding-left: 8vw;
    padding-right: 8vw;
}

div.major h1, div.major h2
{
    font-weight: 500;
    padding: 0;
    margin: 0;
    text-align: center;
}

div.major h2
{
    margin-bottom: 2rem;
}

div.tapa
{
    line-height: 1.6;
    padding: 1em 0;
}

img.demo {
    max-height: 40vh;
    margin: auto;
    display: block;
}

iframe.demo {
    margin: auto;
    display: block;
}

h3 {
    margin: auto;
    display: block;
    text-align: center;
}

p {
    font-size: 1.2em;
}

p.cntr {
    text-align: center;
    font-size: 1.2em;
}