Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Design Photoshop Foundations Slices & Save for Web The Slice Tool

Vertical lines are visible when file is opened in photoshop.

individual lines can be moved right and left. Wondering what these are and how I can disable them ?

2 Answers

These are guides to use to measure and align elements. you can hide them by right clicking on your canvas and selecting hide guides or from the view menu.