CSS Compound Classes
Hey everyone, we're going to take our menu in this video that looks currently like this too. This petting either side some space between them, font sizes to do all this, we're going to have to learn what a compound selector is. Pretty cool and nice and simple. It's gonna allow us to be fancier. Web designers. Alright let's jump in and learn what it does. Okay, compound selector. What is a compound class? It's just more than one because we've got a problem now because what I wanna do is I want to style these attacks Okay I want to turn off the underlying cause I don't want it here But I've already started the a tags. Remember earlier on we said eight tags we want to leave, you know we didn't we turn that off because we're like actually we don't want we want to leave the underline so we've got one a tag controlling a couple of things so what we can do is use something called specificity. Okay. It just means the more specific you are, the more it will override if you're more specific. So ...
if I say generally all the a tags do this but if I say the latex specifically in the nav do this other thing that will win because it's more specific. Okay generic. A little bit more specific because we're saying the a tags inside of the knobs. Alright let's just do it dan in visual studio code. Okay. The way you structure a compound compound class or compound selector compound because there's two parts to it you can have more than one. Okay we're just gonna do one. So what we want to say is we want to say if there's a nav with an A inside of it. Okay you just put spaces between it. Okay because we're dealing with tag selectors. Okay. The nav and the a it's not a class we don't need the full stop. Okay so this is all by themselves with spaces in between them and that's it. So if there's an a tag inside of a nav do this other thing and what we want to say is text decoration decoration is set to no Decorah what's it called? Set to none it's none. Okay. Cool. Tim golan done save let's have a little look. Is that right? Does work. Cool. So that one's left fine but because that one says the eight eggs inside the nav you've got it. Compound selectors. Super useful. Now we did this way because it's the most simple way and it's nice and clean and clear. You could have got rid of this. I'm going to wrap it up in my um command ford slash okay to comment it out. What I could have done is created a class called no underlying. I'd like to show you both ways because there's nothing really wrong with this way and over here I'm going to say text decoration is going to be set to none. And over here we could say actually I would like after the little after the HR FB I'm gonna put in a class called it was called No underline. No underline. Save it. And hopefully just one of them will be working now. There you go. The trouble with that is that I have to apply that class to all of these tags and that's fine. And if I make another one, I have to go and have that class and there's no real problem with it. But you can see the elegance of this. 1st 1 is elegance, the word, I feel like it is. Okay, awesome. We've learned like what our compound selector is and the kind of syntax for it spaces. Next thing I want to do is I want to tidy up the padding here, so centering in a box. Okay, centering horizontally is perfect, vertically is very hard, surprisingly hard. Don't ask me why, but it is Okay. So later on in the course, when we look at something called flex box, it'll get easier. But for the moment, at our current skill level it's super hard. Okay, so what we're gonna do is kind of fake it. We're just going to put some padding in the top and the bottom until it looks like it's in the middle. Okay, And the easiest way to do this. Okay, There's there's a couple of ways, but the way that we're going to do it is let's add we'll add some padding to this novel. Okay, because at the moment is right at the top, so we'll add a little bit to the top and a little bit to the bottom and maybe get rid of the height, let's give that a try. So what I mean So first of all let's get rid of the height, that'll make it a bit clearer. So is my nav height can either commented out or just delete it because I don't want it, see it's kind of collapsed but if I add some padding to the outside of the nav or I could add it to the actual latex themselves, it doesn't really matter. Okay we're going to do it to the nav just because I feel like it and we're going to say petting and we'll do padding top. I'm gonna make it 14 pixels. Okay. At the top and the same for the bottom. Just going to copy and paste it bottom, awesome. Let's save it and let's preview in a browser, you can kind of see we get to the same point so it was collapsed. Now this padding pushing it out. If we did it with margins, it wouldn't work right. I just kind of drum this into you. The difference between margins and padding, you can see there is some padding you know there is for 14 pixels above them below there because like if I crank it up to 140 you can see there's lots of space there but because it's the outside of the box it doesn't really do what we needed to do. So undo undo. Save preview. Alright, let's fix up a couple of other things that are bugging me. Like the font size is a bit big and the space between the menu are buttons are tiny. Okay so we need to adjust that. Let's jump into V. S. Code. What should we do? And we'll do it to the nav eggs. Okay Because I want to make this a font size Of what are we using Francis of 12 pixels. I wanted quite small to kind of match my um to match my design. Let's have a look save. That's a bit better now let's do this space between them all and what we'll do is a little bit of padding. Okay. And it won't matter if it's padding or margin in this case. Okay. Petting lift I'm going to put in 10 pixels and I'll do the same for the right padding. Right? 10 pixels have a little look awesome. Why don't they do both? Okay because if I do that it's going to be slightly lopsided. It's gonna look fine but it's going to be pushed one side and I guess it doesn't you can't really notice it on this. So imagine we have got a bit of padding to one side but not the other on each of these so it really visually doesn't look any different but it's you've got padding either side. Now. I just kind of often do that and just grab my curse and click over it and drag to try and highlight it and gives me a kind of a vague I have no idea of what's happening. All right, so that's our basic kind of navigation. They don't go anywhere yet. We've got an index page so we have to create a menu page and an order online page. But we only made one so far. So we're just using those um hashes or pound symbols just to kind of make them active but not actually make them go anywhere yet. Alright. That is it for our really simple navigation. Let's get on to the next video.