@media screen and (max-width: 719px) {
    
    #portada {
        display:flex;

        margin:0 auto;
        flex-direction:column;
        
    }
     #portada section:first-child{
         
    margin-top:0px !important;     
     }
       
        
    
    
}

.background{
background: rgba(76,76,76,1);
background: -moz-linear-gradient(left, rgba(76,76,76,1) 0%, rgba(89,89,89,1) 0%, rgba(102,102,102,1) 0%, rgba(71,71,71,1) 0%, rgba(44,44,44,1) 0%, rgba(0,0,0,1) 0%, rgba(19,19,19,0.85) 100%);
background: -webkit-gradient(left top, right top, color-stop(0%, rgba(76,76,76,1)), color-stop(0%, rgba(89,89,89,1)), color-stop(0%, rgba(102,102,102,1)), color-stop(0%, rgba(71,71,71,1)), color-stop(0%, rgba(44,44,44,1)), color-stop(0%, rgba(0,0,0,1)), color-stop(100%, rgba(19,19,19,0.85)));
background: -webkit-linear-gradient(left, rgba(76,76,76,1) 0%, rgba(89,89,89,1) 0%, rgba(102,102,102,1) 0%, rgba(71,71,71,1) 0%, rgba(44,44,44,1) 0%, rgba(0,0,0,1) 0%, rgba(19,19,19,0.85) 100%);
background: -o-linear-gradient(left, rgba(76,76,76,1) 0%, rgba(89,89,89,1) 0%, rgba(102,102,102,1) 0%, rgba(71,71,71,1) 0%, rgba(44,44,44,1) 0%, rgba(0,0,0,1) 0%, rgba(19,19,19,0.85) 100%);
background: -ms-linear-gradient(left, rgba(76,76,76,1) 0%, rgba(89,89,89,1) 0%, rgba(102,102,102,1) 0%, rgba(71,71,71,1) 0%, rgba(44,44,44,1) 0%, rgba(0,0,0,1) 0%, rgba(19,19,19,0.85) 100%);
background: linear-gradient(to right, rgba(76,76,76,1) 0%, rgba(89,89,89,1) 0%, rgba(102,102,102,1) 0%, rgba(71,71,71,1) 0%, rgba(44,44,44,1) 0%, rgba(0,0,0,1) 0%, rgba(19,19,19,0.85) 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#4c4c4c', endColorstr='#131313', GradientType=1 );

}