@font-face{
    font-family: 'Fira Sans';
    src: url('../webfonts/FiraSans-Medium.eot');
    src: url('../webfonts/FiraSans-Medium.eot') format('embedded-opentype'),
         url('../webfonts/FiraSans-Medium.woff2') format('woff2'),
         url('../webfonts/FiraSans-Medium.woff') format('woff'),
         url('../webfonts/FiraSans-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
}
@font-face{
    font-family: 'Fira Sans Light';
    src: url('../webfonts/FiraSans-Light.eot');
    src: url('../webfonts/FiraSans-Light.eot') format('embedded-opentype'),
         url('../webfonts/FiraSans-Light.woff2') format('woff2'),
         url('../webfonts/FiraSans-Light.woff') format('woff'),
         url('../webfonts/FiraSans-Light.ttf') format('truetype');
    font-weight: 300;
    font-style: normal;
}
html{
	font-size: 1em;/*Definimos tamaño relativo.*/
}
body{
	margin: 0 auto;
	color: black;
	background-image: url(../img/brickwall.png);
}
header{
    width: 1170px;
	color: #004f71;
    background-color: rgba(240, 179, 35, 0.5);  
    padding: 10px;
	border: 5px solid #004f71;
	box-shadow: 10px 10px 10px 5px #888; 
    margin: 50px auto;
    font-size: 2rem; /*root em: realiza el cálculo en función del elemento html. Así no tendremos problemas con la cascada*/
}
h1{
    font-family: 'Fira Sans', sans-serif;
    text-align: center;
}
h2{
	font-family: 'Fira Sans Light', sans-serif;
    text-align: center;
}
section{
	width: 1170px;
    height: 380px;
	margin: 50px auto;
    padding: 5px;
    border: 5px solid #004f71;
    box-shadow: 10px 10px 10px 5px #888;
}
article{
    width: 558px;
    height: 356px;
    background-color: rgba(240, 179, 35, 0.3); 
    font-size: 1.2rem; 
    font-family: 'Cuprum', sans-serif;
    border: 2px solid #004f71;
    padding: 10px;
    float: left;   
}
.titulo{
    color: #004f71;
    background-color: rgba(240, 179, 35, 0.5);
    padding: 5px;
}
footer{
    width: 1170px;
    border: 1px solid #004f71;
    font-family: courier, sans-serif;
    color: #004f71;
    margin:0 auto;
    padding: 20px;
}