body{
    background: #000 url("images/el-guerrero.jpg") no-repeat center center;
    background-size: cover;
    height: 100vh;
}

main{
    position: fixed;
    bottom: 10px;
    width: 100%;
    text-align: center;
    font-size: 12px;
    color: #FFF;
    font-family: Arial, Helvetica, sans-serif;
}