1. Introduction

1.1 Tutorial's goal

This tutorial aims to provide a comprehensive understanding of how to combine Flexbox and CSS Grid systems for creating advanced layouts. The combination of these two powerful layout models allows for precise, flexible, and responsive designs.

1.2 Learning objectives

By the end of this tutorial, you'll learn:
- The basics of Flexbox and CSS Grid layout systems
- How to combine Flexbox and CSS Grid to create advanced layouts
- Best practices for using Flexbox and CSS Grid together

1.3 Prerequisites

Before starting this tutorial, you should have a basic understanding of:
- HTML
- CSS
- Basic Flexbox and CSS Grid concepts

2. Step-by-Step Guide

2.1 Flexbox

Flexbox is a CSS3 layout model that allows for easy manipulation of layout, alignment, and distribution of space among items in a container.

.container {
  display: flex;
}

2.2 CSS Grid

CSS Grid is a 2-dimensional layout system, allowing you to work with rows and columns simultaneously.

.container {
  display: grid;
}

2.3 Combining Flexbox and CSS Grid

You can combine these two by using Grid for the main layout structure and Flexbox for the smaller components.

.container {
  display: grid;
}

.item {
  display: flex;
}

3. Code Examples

3.1 Example 1: Basic Layout with Grid and Flex

<div class="container">
  <div class="item">1</div>
  <div class="item">2</div>
  <div class="item">3</div>
</div>

.container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.item {
  display: flex;
  justify-content: center;
  align-items: center;
}

Here, .container uses Grid to divide the space into three equal columns. Each .item uses Flexbox to center its content both vertically and horizontally.

3.2 Example 2: Advanced Layout with Grid and Flex

<div class="container">
  <div class="header">Header</div>
  <div class="main-content">Main Content</div>
  <div class="sidebar">Sidebar</div>
  <div class="footer">Footer</div>
</div>

.container {
  display: grid;
  grid-template-columns: 1fr 3fr;
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    "header header"
    "sidebar main-content"
    "footer footer";
}

.header, .footer {
  grid-column: span 2;
}

.main-content, .sidebar {
  display: flex;
  flex-direction: column;
}

This layout uses Grid to create a header, a main content area with a sidebar, and a footer. Within the main content and sidebar areas, Flexbox is used to align the content vertically.

4. Summary

In this tutorial, we learned how to combine Flexbox and CSS Grid to create advanced layouts. We used Grid for the main layout structure and Flexbox for the smaller components. This combination allows for precise and flexible designs.

5. Practice Exercises

5.1 Exercise 1: Create a layout with a header, three equally spaced columns, and a footer.

5.2 Exercise 2: Create a layout with a header, a main content area (split into two equal columns), a sidebar, and a footer.

5.3 Exercise 3: Add a navigation menu to the header in exercise 2, evenly space the menu items horizontally.

For further practice, try creating different types of layouts such as a portfolio layout, a blog layout, or a photo gallery.

Remember, combining Flexbox and CSS Grid is powerful and allows for much more control and precision in your designs. Happy coding!