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Before we dive deeper into responsive design though,

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let's have a look at what we will build.

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Because, no big surprise here,

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this course is all about becoming a web developer.

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Therefore, we'll again

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create a brand new website for this responsive module.

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This is the website that we're going to build.

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It's not a very spectacular website,

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but it's a website which greatly allows us to dive into

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responsive design.

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The website contains typical elements

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we learned about in this course so far,

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so we have a page logo here.

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We have two navigation items,

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which don't lead to dedicated pages here.

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You could of course implement this, if you want to.

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We have a headline right here,

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and we have two cards with different meals.

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These two buttons, which would allow us to add our menu,

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our meal, to our shopping cart are of course not working at

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the moment, as this would require JavaScript,

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which we'll explore soon in this course.

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However, I just increased the zoom again,

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to make it better visible for you. However, if we now,

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again, access our developer tools,

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then you will see why this side is a bit more advanced when

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comparing it to the sites we built so far in this course.

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Because in the dev tools in the left border,

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so to say of these.

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So I'm referring to this line right here.

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If you click and hold the left mouse button to select this

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line, then you can play around with it.

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You see at the top here that you see the pixels,

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so the pixel width of the content of the website here,

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and we can change this width.

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If we increase it, you see not a lot is happening,

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but if we decrease the width,

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which would be typical for smaller devices like tablets or

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smartphones, which have well,

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a smaller width when comparing it to big desktop screens.

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So if we decrease that width here,

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you see here that the text already changes to two lines,

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but that's not the big thing.

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But if we further decrease the width here,

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you'll see that we have a very big change.

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The entire layout,

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the entire look of the website, and the information being

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displayed changes on a certain breaking point here.

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Let's go right here again to see what changes.

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First, the font size of our headline decreases.

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Second, the layout of our cart items changes.

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On the desktop version,

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we have a horizontal layout, left to right.

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On the mobile version, which would be the

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version displayed right here,

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we have a vertical layout.

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So a layout you typically know when browsing websites from

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your mobile phone. They could,

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of course also scroll down here to see the second cart item.

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Besides this, we also have preferred very important change.

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Our navigation items disappeared.

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In the desktop version,

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we had the "browse meals" and the "my orders"

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navigation items.

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In the mobile version, these disappear.

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Instead, we have this strange looking icon here.

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The icon is actually built completely in CSS and HTML,

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and it's called a so-called "hamburger icon",

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due to its look,

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it kind of looks like a hamburger, you could say.

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And if we click onto this icon though,

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you see that the navigation items are back,

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but in a completely different layout.

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This has nothing to do with the desktop layout we had so far

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where these items were placed up here.

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This is basically an entire new page you could say.

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And if we increase the width of the page again,

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you'll see it disappears.

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If you make it smaller.

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Now, a lot smaller as the zoom level decreased.

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You can see it right here. We have the mobile look again.

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And if you click right here, then the new menu,

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the new navigation menu disappears.

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And if you have course closed or dev tools,

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we are back in the desktop view.

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So, this is the page we're going to build.

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And as you see, this page contains all core concepts

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we need to make sure our website looks good on both

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mobile devices and desktop devices.

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So this is the introduction.

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Let's dive into the project now as a next step.