For example, the following CSS code will scan the page for all link elements ("a") where the "href" attribute contains ("*" character) the "facebook" string and will color all these links in blue.

The CSS code isn't very complex and tries to apply a CSS effect known as backdrop-filter to a series of nested page segments (DIVs). Also: Best Home Security Devices for 2018 CNET ...

Back in 2012, Mozilla launched Thimble, an online code editor for teaching the basics of HTML, CSS and JavaScript. Over time, though, things got pretty quiet around the project as other browser ...