CSS causing browser to jump randomly

[astonj]

HI there on the following website : -

 

if viewed in firefox this is more noticeable : -

 

http://temp.pentabus.co.uk/menu/

 

you will notice a flicker on the right hand side - it may not do it straight away - but after a few transitions you will notice a very very tiny jump on the right hand scroll bar when an image changes - when i used the following line i lost the scroller obviously : -

 

overflow-y: scroll !important;

 

and when i use overflow: scroll; it is still appearing ever so slightly but alot less than without this line of css, can anybody help me.

 

thanks for readign and your time

jonathan

[Wickham]

It didn't happen for me in Firefox.

 

I used the validator http://validator.w3.org/ which found three errors, not related to your problem; using

there is no attribute "runat" I haven't seen this attribute before.

 

Also two errors re scripts which sould probably be:-