<commit_before>#BackstopJS
**Catch CSS curve balls.**


BackstopJS automates CSS regression tesing of your responsive web UI by comparing DOM screenshots at various viewport sizes.

**Try the step-by-step tutorial on [css-tricks.com](http://css-tricks.com/automating-css-regression-testing/).**

Learn more at [http://BackstopJS.org/](http://garris.github.io/BackstopJS/).

<commit_msg>fix(readme): spelling<commit_after>#BackstopJS
**Catch CSS curve balls.**


BackstopJS automates CSS regression testing of your responsive web UI by comparing DOM screenshots at various viewport sizes.

**Try the step-by-step tutorial on [css-tricks.com](http://css-tricks.com/automating-css-regression-testing/).**

Learn more at [http://BackstopJS.org/](http://garris.github.io/BackstopJS/).


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