Gain insights into designing mobile-responsive web layouts using Flexbox. Delve into Box Model basics, Flexbox containers, and item alignment, and apply your knowledge to create stunning, mobile-first websites.

CBCA - CSS with Flexbox (Intermediate)-01.jpg

In this course, you will get hands-on experience in designing mobile-responsive web layouts using Flexbox. You will start with the basics like the Box Model and the process of layouting.

You will then move on to advanced concepts such as Flexbox containers, and aligning individual Flexbox items. Near the end of the course, you will put everything you just learned into practice. You will work on a project that focuses on developing a mobile-first website where you’ll experiment with page layout, headers, footers, and a lot more.

By the end of this course, you will be able to use Flexbox in your own projects to create beautiful layouts.

Designing Web Layouts with CSS and Flexbox

# Exercise 1

This is an easy exercise. To separate the rows vertically, all we need is one margin rule on the blog posts, setting the top and bottom margins to `25px`: 

```css 
margin: 25px auto;
```

.container {
  display: flex;
  justify-content: space-evenly;
  flex-wrap: wrap;
  width: 800px;
}

.blogpost {
  width: 225px;
  height: 150px;
  box-sizing: border-box;
  border: 1px solid black;
  background-color: lightgrey;
  margin: 25px auto;
}


codemirror

# Exercise 2 

First, we'll remove the width of the container and change the `justify-content` setting to `flex-start`:

```css
.container {
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
}
```

Let's also add a fixed width to the body to make sure we're focusing on the same screen size: 

```css
body {
  width: 900px;
}
```

As a result, we have four posts in row one and three posts in row two. Why?

body {
  width: 900px;
}

.container {
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.blogpost {
  width: 225px;
  height: 150px;
  box-sizing: border-box;
  border: 1px solid black;
  background-color: lightgrey;
  margin: 25px auto;
}


The reason is that in exercise 1, we added the 

```css 
margin: 25px auto;
```

rule to the blog posts. Unfortunately, this allocates a horizontal margin occupying the whole last row for Post 7.

To avoid this, we will have to create our own margins horizontal as well:

```css
.blogpost {
  /* ... */
  margin: 25px;
}
```

Let's also add a max-width to the container to maximize the number of blog posts to three. One post takes `275px` again. This leads to a cumulative max-width of `825px` for the container. We can now safely remove the fixed body width, because the container now looks good for all screen sizes.

This lesson contains the solutions to the flex-wrap exercises in the previous lesson.

Getting Started

Using Flexbox Containers

Aligning Individual Flexbox Items

Designing a Mobile-first Website Using Flexbox

Flexbox Conclusion and Next Steps

Flex-wrap Solution

Exercise 1

Exercise 2