Tools can help check the accessibility of web applications – but human understanding is required in many areas.

Got a confidential news tip? We want to hear from you. Sign up for free newsletters and get more CNBC delivered to your inbox Get this delivered to your inbox, and ...

A colon is used to give emphasis, present dialogue, introduce lists or text, and clarify composition titles. Emphasis—Capitalize the first word after the colon only if it is a proper noun or the start ...