css unable to move login validator

I have two requiredfield validators in visual studio. Now I am trying to apply css to them like 开发者_StackOverflow中文版below:

#vdtrUserLogin { top:65px; left:750; position:absolute}
#vdtrPasswordLogin0 { top:65px; left:900; position:absolute}

However the left position does not seem to take effect. How can I fix this?

Thanks Behrouz

Add px to your units.

#vdtrUserLogin { top:65px; left:750px; position:absolute}
#vdtrPasswordLogin0 { top:65px; left:900px; position:absolute}