What is purpose on new blue ruler atop Split and Design views?

[wcamp]

I see a new blue ruler at the top of the regular ruler i both the Split and Design view pages. What is it for? There's no tooltip describing its purpose or its appearance.

Neither is the a deactivation button.

Please help me find out why it's there? There's nothing intuitive about it.

Thank you.

Warren

[Nancy OShea · Accepted solution]

It's the visual media queries bar for creating breakpoints in CSS for mobile, tablet, desktop.  I don't use it myself.  But some people like it.

Use Media Queries to design responsive sites in Dreamweaver

On the Common (vertical) Toolbar, there is an icon to show/hide visual media queries bar.  If you don't immediately see it, click on the 3 dots icon to customize your toolbar.  You'll be presented with other tool options.  See screenshot.

[wcamp]

Whew! Many thanks, Nancy!

Glad it was easy to deactivate; wish it would have been set up more intuitively so that users could (a) easily recognize its purpose, (b) open a tooltip that told more about this feature, and (c) quickly find and click a "close" icon for it, once its purpose was determined and found to not be needed.

Hopefully, developers will soon add an appropriate tooltip and a contiguous Close icon to make life on DW CC 2017 easier.

Thanks again. Your answer was Correct. I'm pleased to have recovered that valuable rel estate.

Warren