.leftdiv.horizontal
{
    max-width: 600px;
}

.leftdiv.vertical
{
    max-width: 350px;
}

.leftdiv.vertical.battery-2600
{
    max-width: 200px;
}

@media screen and (max-width: 640px)
{
    .leftdiv.vertical
    {
        width: 55%;
        margin-right: 0px;
    }
}