Newbie question

:-/ Hello

If i make a button i photoshop lets say a rectangulare box in white with the text “pictures” coloured in red and a rollover coloured in grey. And my backbround is white.

When i push my button that leads to a html i get this ugly “pattern” around my button. Lets say my buttons is 50*90 the “pattern” draws around the shape.

It was hard to explain this;) but hopefully someone understands what i mean.

I added a picture to show you my problem

Regards,
Simon Sebergsen :puzzle: