.contentHeight{
    line-height:40px;
}
.SmallScreen{
    display: none;
}
.LargeScreen{
        display: block;
}

@media only screen and (max-width: 800px) {
    .contentHeight{
    line-height:20px;
    }
    .LargeScreen{
        display: none;
    }
    
    .SmallScreen{
        display: block;
    }

}