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CSS

Posted by Pawel Sysiak
Pawel Sysiak
3,920 Points

confusing selecting html with css

I am confused with how to properly select html in css for some time now:

for example:

why in this video you use this:

gallery li {

width: 28.3333%; }

not this:

#gallery li a{ width: 28.3333%; }

2 Answers

Sheryl Darroch
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Sheryl Darroch
Treehouse Project Reviewer
Sheryl Darroch
.a{fill-rule:evenodd;}techdegree seal-36
Sheryl Darroch
Treehouse Project Reviewer

Hi Pawel,

I can't see your code to specifically explain why you would use one over the other, but the difference between the two lines of code you put in your question are this:

This code selects the (LI) list item within the element that has an id of "gallery" (my guess is the gallery is a UL)

gallery li {width: 28.3333%; }

This code selects the a (link) within the (LI) list item within the element that has an id of "gallery".

gallery li a{ width: 28.3333%; }

Hope this helps! Keep coding!

Conor Redmond
Conor Redmond
5,375 Points
Conor Redmond
Conor Redmond
5,375 Points

Hi Pawel, I cant see the video you refer to but: When you write CSS with a #gallery li, it looks in your HTML for a id="gallery" and then for the list items within that id. If your CSS begins with a .gallery li, it will look for a class="gallery" and the list items in that class. If your CSS just begins with gallery li (without a # or .) then it will look for the li within an actual tag.