With overflow not lag

[Daniele Scasciafratte]

i have added this css code and i have seen that on FF16 the animation it's fluid and not lag.
i have increased the value of width and height with padding-left for not hide the ribbon.

.forkit {
width: 200px;
height: 300px;
z-index: 4;
overflow:hidden;
padding-left: 100px;
}

[Hakim El Hattab]

Tried this out in FF 16 OS X but it doesn't seem to have any effect on performance for me.