________ store data magnetically on metal platters

Can you think of examples where do-it-yourself usability testing isn’t appropriate?

What will be an ideal response?

Define viewport:

a. Makes min-width and max-width media queries work in older versions of IE. b. Each width at which content would benefit from adjustment. c. Free, browser-based tool that provides views that map to a few popular device sizes. d. Area within browser that displays page, both on desktop and mobile browsers.