@media (max-width:1350px)
{
    #principal
    {
        width:78%;
    }
}

@media (max-width:1225px)
{
    #principal
    {
        width:75%;
    }
    
    .products
    {
        width:30%;
    }
}

@media (max-width:1100px)
{
    #categories
    {
        width:220px;
    }
    
    #categories h3
    {
        font-size: 30px;
    }
}

@media (max-width:970px)
{
    section
    {
        margin: 0 auto;
        padding:0px 0 140px 0;
    }
    
    #principal
    {
        width:70%;
    }
    
    .products
    {
        width:45%;
    }
    
    
    .searchbox
    {
        padding: 10px;
        width: 100%;
    }
    
    #principal
    {
        margin: 0 auto;
    }
    .products
    {
        display: inline-block;
    }
}

@media (max-width:850px)
{
    .pbar > div:first-child, .pbar > div:last-child
    {
        width: 100%;
        display: block;
        padding: 5px 0;
        text-align: left;
    }
    .pbar
    {
        height: 80px;
    }
}

@media (max-width:780px)
{

    #categories
    {
        min-height:100px;
        padding:10px;
        box-shadow: 0px 8px 20px -15px black;
        border: none;
    }
    
    #categories > div:not(.searchbox)
    {
        display:inline-block;
        vertical-align: top;
        padding:0px 20px;
        margin: 5px 0px;
    }
    
    #categories h4
    {
        margin-top: 0;
    }
    
    #categories div:first-of-type
    {
        border:none;
    }
    
    #categories h4, #categories h3
    {
        margin: 0;
    }
    
    #principal, #categories
    {
        width:100%;
    }
}
@media (max-width:600px)
{
    .pbar
    {
        width:100%;
    }
    .pbar > div:first-child
    {
        font-size: 14px;
        text-align: center
    }
    .pbar > div:last-child
    {
        font-size: 18px;
        text-align: center
    }
    .showing button
    {
        width: 50px;
    }
}
@media (max-width:500px)
{
    #principal
    {
        text-align: center;
    }
    .products
    {
        margin: 9px auto;
        width:100%;
    }
}