@media screen and (max-width: 1100px)
{
    .vertical_text
    {
        transform: rotate(0deg);
        -webkit-transform: rotate(0deg);
        -moz-transform: rotate(0deg);        
        left: 0;
        top: 10.0rem;
        width: 100%;
        text-align: center;
    }
    
    #logo
    {
        padding-top: 1.25rem;
        padding-left: 1.0rem;
    }
}

@media screen and (max-width: 760px)
{
    #logo
    {
        width: 50%;
        float: none;
        margin: 0 auto;
        padding-left: 0;
    }
    
    #cover nav ul
    {
        width: 100%;
        padding: 0;
        justify-content: space-around;
    }
    
    #cover nav ul li:last-child
    {
        padding: 0;
    }
    
    .vertical_text
    {
        top: 20rem;
    }
}

@media screen and (max-width: 520px)
{
    #logo
    {
        width: 70%;
        padding-left: 0;
    }
    
    #cover nav ul
    {
        display: block;
        text-align: center;
        margin-top: 4.0rem;
        height: 100%;
    }
    
    
    #cover nav ul li, #cover nav ul li:last-child
    {
        padding-bottom: 2.0rem;
    }
    
     .vertical_text
    {
        top: 35rem;
        letter-spacing: 1.0rem;
        font-size: 1.6rem;
        padding: 0.0rem 1.0rem;
    }
}