html {
    font: 15pt Arial;
}
body {
    background: url("wallpaper-php.jpg") no-repeat top center fixed;
    background-size: cover;
}

div::before {
    content: " Curso de PHP para Iniciantes - by Gustavo Guanabara ";
    font: 10pt Arial;
    font-weight: bold;
    color: white;
    background-color: #273747;
    padding: 5px;
    display: block;
    position: relative;
    top: -10px;
    left: -10px;
    width: 560px;
}

div {
    background-color: rgba(255,255,255,.8);
    margin: 100px auto 100px auto;
    padding: 10px;
    width: 550px;
    min-height:300px;
}

a {
    color: #273747;
    text-decoration: none;
    font-weight: bold;
    font: 11pt Helvetica;
}

a:hover {
    text-decoration: underline;
}

span.foco {
    font-weight: bold;
    color: #7e050c;
}

.botao {
	background-color: #273747;
	color: white;
	padding: 8px;
	box-shadow: 2px 2px 1px #aaaaaa;
}