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How to use CSS to implement responsive grid layout

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Release： 2023-11-21 13:56:23

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How to use CSS to implement responsive grid layout

With the popularity of mobile devices and the emergence of multiple screen sizes, responsive grid layout has become an important part of design and Developer focus. Using CSS to implement responsive grid layout allows web pages to flexibly adapt to different screen sizes and devices. This article will introduce how to use CSS to implement responsive grid layout and provide specific code examples.

Using CSS Grid Layout

CSS Grid layout is a powerful layout system that can organize the layout of the page in the form of a grid. It is very convenient to use Grid layout to implement responsive grid layout. You only need to set the appropriate grid style and adaptive properties.

First, you need to define a grid container in the style sheet of the web page. You can use display: grid to create a grid container. For example:

.grid-container {
  display: grid;
}

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Then, use the grid-template-columns properties to define the number and column width of the grid container. You can set the column width using units such as percentage, em or rem, and use the repeat function (repeat()) to create repeated columns. For example:

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

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This code will create a grid with 3 columns, each column is equal in width.

Next, you can use the grid-template-rows property to define the number of rows and row height of the grid container in a similar way to defining columns. For example:

.grid-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(4, 100px);
}

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This code will create a grid with 3 columns and 4 rows, each row has a height of 100px.

Media Query

In order to make the grid layout adapt to different screen sizes, you need to use media queries to set the grid style under different screen sizes.

First, you can define media queries using the @media keyword. Different grid styles can be set based on the width of the screen. For example:

@media screen and (max-width: 600px) {
  .grid-container {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(6, 100px);
  }
}

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This code indicates that when the screen width is less than or equal to 600px, the grid container is set to contain 2 columns and 6 rows, with a height of 100px for each row.

You can use multiple media queries to set grid styles at different sizes as needed.

Responsive grid layout code example

The following is a complete code example that shows how to use CSS to implement a responsive grid layout.

<!DOCTYPE html>
<html>
<head>
  <style>
    .grid-container {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      grid-template-rows: repeat(4, 100px);
      gap: 10px;
    }

    @media screen and (max-width: 600px) {
      .grid-container {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(6, 100px);
      }
    }

    .grid-item {
      background-color: #ccc;
      padding: 20px;
      text-align: center;
    }
  </style>
</head>
<body>
  <div class="grid-container">
    <div class="grid-item">1</div>
    <div class="grid-item">2</div>
    <div class="grid-item">3</div>
    <div class="grid-item">4</div>
    <div class="grid-item">5</div>
    <div class="grid-item">6</div>
    <div class="grid-item">7</div>
    <div class="grid-item">8</div>
    <div class="grid-item">9</div>
    <div class="grid-item">10</div>
    <div class="grid-item">11</div>
    <div class="grid-item">12</div>
  </div>
</body>
</html>

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In this example, the grid container contains 3 columns and 4 rows, each grid item has the same style, and media queries are used to change the grid style when the screen width is 600px or less.

By using CSS Grid layout and media queries, you can achieve a flexible and powerful responsive grid layout. Try applying these techniques to your web pages to make them look good on different devices.

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