Web developers need to match mocks. Creating pixel-perfect implementations of a design can be a chore... or it can be a delight. The right tooling makes all of the difference. Pixels enables on-screen guidelines that are shared across tabs. 1. Drag and drop your mock onto a new tab. 2. Activate Pixels and create guidelines around the feature that you'd like to perfect. 3. Activate pixels on the page you have under development and translate the guidelines to match the top-left corner of your feature. 4. Tweak your feature to perfection. 5. Profit.