HTML5 and CSS3 Beginner Tutorial 18 - classes

In this tutorial I explain how to use classes to style elements on your web page. Social links:
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[hopepar]

Your a very good teacher! I have looked at others and don't learn as well. You explain CSS wonderfully.

[albeerobert]

This is great because if you have lots of paragraphs that you want to style differently. what you taught here makes it so you can. This is great!!!

[timiperealbert]

Thanks for this brief and well-explained series. I've been watching for some time now and my html5 skill is growing

[חןנעם]

I love your tutorials, it's so easy to learn and very clear.

Thanks,
Chen

[ilovefoss]

Nice !! Tutorail.... I really appreciate about this ...

[QuentinWatt]

Class of "BLUE" would be blue, and all other h2 headers would be red. Why not try it out though? :)

[clevelanddaileyjr]

How do I add text paragraphs and pictures inside of the different pages in the nav bar

[fnTuukka]

The audio is shitty on this. Otherwise great job again! ;)

[lirisa]

I did, or at least I tried and it was coming out all red. I think I was messing something up with the code, because it's coming out all red. Though it's coming out red, blue, red now. I was wondering if I was messing something. Your tutorials are very nice.^^

[lirisa]

I'm sorry if I don't word this right.if you wanted to modify modify all tags h2 so you make a style sheet and make something like h2 {color:red;} that would change all h2 tags red. Now, if you wanted to make one blue, and added a class to make one blue.Would the class have an effect or not?

"CSS:
h2 { color: red;}
.BLUE { color: blue; }"

Html: :
'...
(h2) Red(/h2)(br/)
(h2 class="BLUE")Blue.(/h2)(br/)
(h2) Red</h2)(br/)
..."

Would "Blue" be blue or red?

[AshutoshKumar-ncts]

I tried same code, but no any color changed