.contentMain
{
    height:                 calc(100% - 90px);
}

.menuContent
{
    width:                  100%; 
    height:                 calc(100% - 105px); 
    background-color:       #5d5b5c;
}

@media screen and (max-width: 1020px)
{
    .contentMain
    {
        height:             calc(100% - 45px);
    }

    .menuContent
    {
        height:             100%; 
    }
}