Welcome to the Treehouse Community
The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.
2 Answers
Sue Dough
35,800 PointsThere is not too much of a difference between them. Read these for a better understanding.
http://www.impressivewebs.com/before-after-css3/ http://stackoverflow.com/questions/13400323/why-are-there-two-colons-here-spanbefore
hum4n01d
25,468 PointsThis should be helpful:
https://css-tricks.com/almanac/selectors/a/after-and-before/
Summarized, two colons is for inserting content and one is for :last-child, :nth-child() and other child selectors.
AR Ehsan
7,912 PointsThanks, but can you help me with Challenge Task 4 of 4
Finally, create a new rule that will insert a pseudo-element after an a element. As the content value, define a CSS function that will insert an href attribute's value as content. In html. Thanks!
hum4n01d
25,468 PointsGhost code answered this already
AR Ehsan
7,912 PointsAR Ehsan
7,912 PointsThanks, but can you help me with Challenge Task 4 of 4
Finally, create a new rule that will insert a pseudo-element after an a element. As the content value, define a CSS function that will insert an href attribute's value as content. In html. Thanks!
Sue Dough
35,800 PointsSue Dough
35,800 PointsYes I will answer that on the other post https://teamtreehouse.com/forum/finally-create-a-new-rule-that-will-insert-a-pseudoelement-after-an-a-element .
:)