header {background-color:rgba(51, 49, 50, 1);
        float: left;
        width: 100%; 
        height: 70px;
        }
div#carilla{
    width:960px;
    margin: auto;
    margin-top: 2%;
    }
main{ 
    background-color:rgb(67, 65, 66);
    width:96%;
    float:left;
    color: rgb(255, 255, 255); 
    padding: 2%;
        }
footer{
    background-color:rgba(51, 49, 50, 1);
    color:rgb(255, 255, 255);
    text-align: center;
    clear:both;
}
nav ul{
    list-style:none;
    }
nav ul li{
    width: 8rem;
    margin-bottom: 230rem;
    float: left;
    margin: 5px 30px 0px;
    margin-right: 0.5rem;
    text-align: center;
    margin-top: 15px;
    }
nav ul li a {
    text-decoration: none;
    display:inline-block;
    Color:rgb(255, 255, 255); 
    background-color: rgba(241,65,48,1);
    width:100%;
    } 
header nav ul li a:hover { background-color:rgba(255,222,64,1);