#main > div.col.s12:nth-child(1){
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    background: url(../images/plantilla_head.jpg) no-repeat center center;
}
#content article ul{
    opacity: 1;
}
#content #fichero_sencillo{
    min-height: 450px;
}
#content #fichero_sencillo div.col.m4 > div a{
    color: #f9f9f9;
    font-weight: bold;
    font-size: 20px;
    padding: 20px;
    display: block;
    margin: 5px 0;
    background-color: #38A59B;
    border-radius: 5px;
    box-shadow: 3px 3px 6px #ccc;
}
#content #fichero_sencillo div.col.m4 > div a:hover, #content #fichero_sencillo div.col.m4 > div a.active{
    background-color: #656859;
}
#content #fichero_sencillo div.col.m8 > div{
    display: none;
}
#content > div:nth-child(13) > article > div > ul > li > div.collapsible-header h3{
    color: #008A87;
    font-size: 20px;
}
.draggable, .droppable{
    border-radius: 5px;
}
.draggable{
    background-color: #9BCDB1;
    border: 1px dashed #008A87;
    text-align: center;
    padding: 10px;
    margin: 10px 0;
    color: #FFF;
    -webkit-box-shadow: 3px 3px 3px 1px rgba(153, 153, 153, 0.46);
    box-shadow: 3px 3px 3px 1px rgba(153, 153, 153, 0.46);
    cursor: move;
}
.droppable{
    padding: 20px;
    background-color: #646858;
    border: 1px solid #525B55;
    color: #DAEEBD;
    margin: 10px 0;
}
.droppable.correct{
    background-color: #8AD9CB;
}


@media(min-width:601px) and (max-width:992px){
    #main > div.col.s12:nth-child(1){
        background: url(../images/plantilla_head.jpg) no-repeat center center;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: cover;
    }
}

@media(max-width:600px){
    #main > div.col.s12:nth-child(1){
        background: url(../images/plantilla_head.jpg) no-repeat center center;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: cover;
    }
}