Okay, so you can see that one panel's gone there, and one panel's gone there.
And if we really want to clearly see what's going on,
let's just draw a border around those two things so we can see what they're doing.
So I'm gonna define a new style called, which gives a border to things.
So I'm gonna put my old style sheet back in, okay.
So I'm back in the head part the document here, and
my style sheet is called styles.css.
So you can see, you can actually include lots of style sheets.
It's fine. You can add as many as you'd like.
And the idea of that is that they cascade into each other.
So the bootstrap.css, we looked at that earlier, and
it had loads and loads of different styles.
So that's our starting step styles.
And then we add styles.css to that, and if it has anythings that have the same class,
then it will override what's going on.
So each style sheet you add can kind of override things that happened
in the previous styles sheet, or indeed add new ones.
And again that's quite a common thing, so
you might start with a default style sheet and then modify it a bit.
So when we're modifying the way that Bootstrap displays things,
we might, we put that in a separate file.
We don't edit bootstrap.css.
Okay, so there's style.css.
First, let's open up style.css Oops.
And, drop it into the text editor there.
And I don't need any of these styles anymore,
because I'm now letting Bootstrap style up my page,
but I would like to create a new class called thin_border, right?
And thin_border is just gonna create a border on whatever you set it to, so
border: 1px solid black, okay?
So that would create a thin border on whatever you set it to.
So then I can go into here, so just reminding you of the syntax there.
So full stop thin_border means I'm defining a new CSS class, and
then everything in the brackets, that's the CSS class properties, okay.
And then I can put a comment in just to explain what it's doing, use this to put
borders around things.
Okay, so that's a CSS comment.
So you notice there's different types of comments for CSS and HTML.
Okay, then I just need to add that class, so it's called thin_border, right.