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CSS gives Web designers control over the appearance of their web sites by separating the visual presentation from the content. It lets them easily make minor changes to a site or perform a complete overhaul of the design. In CSS Web Site Design, instructor and leading industry expert Eric Meyer reviews the essentials of CSS, including selectors, the cascade, and inheritance. The training also covers how to build effective navigation, how to lay out pages, and how to work with typography, colors, backgrounds, and white space. Using a project-based approach, Eric walks through the process of creating a Web page, while teaching the essentials of CSS along the way. By the end of the training, viewers will have the tools to master professional site design. Exercise files accompany the training videos.
So in this video, we're going to discuss text decoration, which is not the process of hanging Christmas ornaments on your text, although in essence it is about text ornamentation, only in this case the ornaments are things like underlining and overlining. So, if you look at our page here, we already have some text that has text decoration. The links in the nav bar, about us, brewing, drinking, products, contact us, those all have underlining. We may decide that we want to get rid of that underlining. So what we can do is say navlinks a text-decoration none. Having done that, the text decoration goes away, there is no text decoration on those links.
We can decorate or undecorate, pretty much whatever we want. The default for text decoration as you might imagine is none. We could underline our h1s text and there we go. We have the h1 text underlined. Of course, now, a user coming into this who is been conditioned to think that all underlined text is linkage and all non-underlined text is not. Might look at this and say, well that's weird they've got the text across there in that purple bar that isn't really linking but then is this about tea history that's a link. I wonder what happens if I click on it and nothing happens and they get really frustrated.
That is a possibility that you have to watch out for. Notice something else. The underlying color takes its color from the text color of the h1 and the about tea part, which doesn't actually have an underline has that blue underline go underneath it. We'll get back to that in just a little bit here. You can actually combine facts. You could both overline and underline some text, or you could just overline it, or heck, if you want it to, for some particular reason, you could underline, overline and line through it and zoozoozoom!, there you have it.
You don't have to do all that, you could just do line-through. Text decoration acts like a shorthand property and then you can have overline, underlined and line through and you can have them in any order, but there isn't like a text decoration underlying property. There are no other properties for this to be a shorthand too, so technically it's not a shorthand property, it just sort of acts like one. So you can combine underline, overline and line through, in any order you want in any fashion you want on a given element.
Let's take this back actually to just underline and overline. Now we'll go back to the bit where we have this dream text and this purple underline and overline that go past it. This is how a text decoration works in effect. If you have a descendent element, I'll go down and take a look at it, there's our h1 with the b element and the b element gets a different color than the h1 element, but we decorated the h1, we didn't decorate the b element. So the decoration for the main h1 goes past that b element.
And if we wanted to turn off the text decoration it's really basically impossible on the b, is basically impossible to do so because if we say text-decoration none, what we've done is we've said, do the default, this right here. There is no decoration on the b element, there's decoration going past it. That's not quite the same thing. So if I hit Reload, nothing will happen because I can't turn off the text decoration around the b element. I could if I were willing to sort of burn the house down, say, underline and overline for my text-decoration, but then I'd also have to make the color of the b element white and there, I turned off the text decoration, but I also turned off the text. It's not visible anymore. The reason that works is that and here's another way to do this, we can just set the text decoration underline overline on the b element, basically it's underline and overline get drawn over the h1s underline and overline, which we can see by using vertical align, which is a holdover from the one of the previous videos.
Suppose I shove that up a bit, you can see that the b element has its own text decoration and the h1 has it's text decoration and the only reason that the Green overline and underline were there and the purple wasn't and was that the green ones were literally drawn on top of the purple ones. So that's kind of the deal with text decoration if you have an element inside of another element and that outside element has text decoration, you can't turn off quote to quote text decoration around the inner element. You can try to fake your way around it but it becomes rather difficult to do. So, there's a little caveat about text decoration, but in general, you can underline, overline, line through or you can remove text decoration from things like hyperlinks if you don't want them to be underlined for some reason.
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