HTML Tutorial: How to Use Grid Layout for Grid Layout

HTML tutorial: How to use Grid layout for grid layout, specific code examples are required

Introduction:
In modern web design, grid layout is A very popular and practical layout method. It can help developers more flexibly control the layout and typesetting of web pages, making web pages more beautiful and easier to read. This article will introduce you to how to use Grid layout in HTML for grid layout, and provide specific code examples to help readers get started quickly.

Part One: Basic Concepts of Grid Layout
Grid layout is a new layout method provided by the CSS Grid Layout module. It divides the web page into grid cells, and developers can place elements in these grid cells. Grid layout has the following basic concepts:

1. Grid Container: The main container of the grid. You can create a grid by setting the display attribute of the element to grid or inline-grid. container.
2. Grid Item: Each child element in the grid container is a grid item, and they are placed in the cells of the grid container.
3. Grid Line: The horizontal or vertical dividing line of the grid, which can be used to place grid items.
4. Grid Track: The area between two adjacent grid lines, which can be used to define the width or height of grid items.
5. Grid Cell: An area surrounded by two adjacent horizontal and vertical grid lines.
6. Grid Area: A rectangular area surrounded by four grid lines, which can be used to place multiple grid items.

Part 2: Create a basic grid using Grid layout
First, we need to create a grid container and place the child elements in the grid. The HTML structure can be as simple as the following:

<div class="grid-container">
  <div class="item">1</div>
  <div class="item">2</div>
  <div class="item">3</div>
  <div class="item">4</div>
</div>

Next, we need to set some properties for the grid container in CSS to implement grid layout:

.grid-container {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-gap: 10px;
}

In the above code, we will The display attribute of the grid container is set to grid, which means creating a grid layout. The grid-template-columns attribute is used to define the number and width of columns of the grid container. Here we divide the grid into three columns, and the width of each column is equal. 1fr is used to indicate the evenly distributed width. The grid-gap attribute is used to define the size of the gap between grids. Here we set the gap to 10px.

Now, we can place four grid items in the grid container and specify their positions:

.item {
  background-color: #ccc;
  padding: 20px;
  text-align: center;
}

.item1 {
  grid-column: 1 / 2;
  grid-row: 1 / 3;
}

.item2 {
  grid-column: 2 / 4;
  grid-row: 1 / 2;
}

.item3 {
  grid-column: 2 / 3;
  grid-row: 2 / 3;
}

.item4 {
  grid-column: 3 / 4;
  grid-row: 2 / 3;
}

In the above code, we define four grid items and Specify their position in the grid through the grid-column and grid-row properties.

Part 3: Use Grid Layout to Create a Responsive Grid
In addition to basic grid layout, Grid Layout also supports responsive layout, which can automatically adjust the layout of the grid according to the size and resolution of the screen. .

For example, we can display a three-column grid on a large screen and only a one-column grid on a small screen. The code is as follows:

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  grid-gap: 10px;
}

In the above code, we use the repeat() function and minmax() function of the grid-template-columns attribute to implement responsive layout. The repeat() function is used to repeat the definition of a grid track, auto-fit means automatically filling the grid according to the size of the container, and the minmax() function is used to limit the minimum and maximum width of each grid track.

Part 4: Conclusion
Through Grid layout, we can more flexibly control the layout and typesetting of web pages to achieve a more beautiful and readable effect. This article introduces the basic concepts of Grid layout and provides specific code examples to help readers get started quickly. I hope readers can use Grid layout in actual development to create excellent web design.

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