Hi, and welcome to this Dream River tutorial. My name is Daniel Walter Scott,  and I'm a trainer here at Bring Your Own Laptop. Now, if you wanna follow along  with these classes we've been building,  using some class files, um,  that you can find in the link in the below this YouTube clip  or in the top left of the  website if you're viewing it from there. Alright. Um, in this tutorial we're gonna look at creating  what is called a class. So the overall term is called a selector.

Okay. You can see the names of them there. So these are, these are the selectors. We, in a previous tutorial looked at styling  what is called a tag,  and that includes things like your H one, your H two,  your P tags. And we looked at the A tag, which is your hyperlink. So those are tags.

So we're gonna style a  different kind of selector now. So instead of this tags, we're gonna look at what's called a  class selector. Now think of a tag selector as a predefined, um, selector. So somebody else has written this thing called H two H one,  and we know that it's to do with our heading one. The P tag is to do with our paragraphs. Now say we wanna make our own custom one.

That's where a class comes in. A class can be used, uh, can be named by us  and can be told to go anywhere it likes. So let's say that, um, the client comes back  and says, yes, I like this H one, but this word rentals. I'd like to be in bold and green for whatever reason. Okay? Now, using my current tools, I could go into the H one  and style it, but I'd style the whole H one.

If I make it green, even though I highlight just this bit  a rentals, and I say, I want you to be now a green  and enter, you'll notice the whole H one becomes a green. It's what they call block level selector. It means that, um, if you style the um, tags,  it means it styles every H one. If you had two H ones on this  tag, it would style both of those. So that's not gonna work for what we need. So I'll put this back to our blue.

What I want is to use this new kind  of selector called a class  to style this last little bit of rentals. So it doesn't really matter where your cursor  is to start this part. What you need to do is make sure over here on the right  that you've got your, you want to go into the CSS file. I want to create a selector. And I don't wanna use any of these ones. I want to create my own one.

Now, to create a selector, you need  to put a full stop in front of it, okay? So it needs a full stop and then you can give it a name. You can give it any name you like, making sure  that you don't use spaces. We'll give you problems and don't use any  of the things like asterisks and dollar signs  and at symbols, anything like that. So just numbers and letters please. So we're gonna call this class, uh,  we're gonna call it highlight.

Um, you can call it anything you like. You call this green and bold. You can call it anything you like. Okay? So I'm calling this one highlight now, just underneath here. So I'm gonna enter, it allows me to create this, um,  the properties for this class.

So zoom out a little bit, okay? And what I want to do is  Jump down to the text and I want  to make it green like the client asked. Okay? So I've dragged my hue slider  and I've dragged the circle over  to the top right hand corner just to get the right kind  of green that I want of the enter. And I'd like to play around with the style,  not the style I want the weight. Okay, so underweight, I'm gonna look at, um, we've got,  it's all normal at the moment.

I'm gonna change it to bold. Okay? And lo and behold, nothing happens. Okay? So you've created this class in your CSS  sheet called highlight. Now we need to apply it.

So what happens is classes get applied on top of tags. So I've got this one called my H one. You can see it down here. If I highlight this thing here, that is my H one on top  of this, just this little special bit I'm going to apply. Um, it's already got my format, H one. I'm gonna apply the class called highlight.

So this thing here now has the H one tag  and a SPAN class called highlight. Alright? So that's how you create a class  and apply it on top of a tag. Um, let's check out the CSSC just quickly. And you'll notice in here I've got my H one,  there's my H two's, my p-tech. And here's this last, um, last little guy here,  which is my class.

It's got a full stop highlight, okay? And I've just changed the color  and made the font weight bolt. Alright? Um, that's it for this tutorial. I'll see you in the next one.