Why is there a red border on preview, and when i preview it in browser theres white line?

[Sarah5CDE]

I added converted a rectangle into a symbol (button) and it have that. I dont want it because it's ruining the design. Fix?

[Sarah5CDE]

[Paul-M]

it looks like you've used the slice tool and red lines are a guide to show your slices .. when you preview in browser it looks like there is spacing between the slices which is something to do with with Fireworks html output, maybe putting one pixel spacers in. In all honesty.

I wouldn't trust the html output of Fireworks, it's still a great app for creating quick graphics/graphical elements but the html output should not be used/trusted really as the app hasn't been updated since 2013. It uses tables for layout and puts spacers in too, its not fit for a 2020 web layout I'm afraid.