CSS panel layout properties: grid and grid-template-columns

CSS panel layout properties: grid and grid-template-columns

In modern web page layout, panel layout is a common design method that can integrate web content Arrange in grid format. The grid layout attribute in CSS and the grid-template-columns attribute are the keys to realizing panel layout.

1. Introduction to grid layout attribute

The grid layout attribute is a property used in CSS to create a grid layout. By dividing HTML elements into grids, you can easily build complex layout structures. . Using grid layout can not only achieve column layout, but also achieve responsive layout and have powerful alignment and resizing capabilities.

2. Detailed explanation of grid-template-columns attribute

The grid-template-columns attribute is used to define the number and column width of the grid. By setting the value of grid-template-columns, you can quickly and flexibly adjust the layout of the grid.

The following are several commonly used grid-template-columns example codes:

1. Even column layout:

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

The above code will .grid- The container element is divided into 3 columns, with each column being equally divided in width.

2. Set the specified column width:

.grid-container {
  display: grid;
  grid-template-columns: 200px 1fr 300px;
}

The above code divides the .grid-container element into 3 columns, the first column has a width of 200 pixels, and the second column accounts for the remaining The scale of the space is 1, and the width of column 3 is 300 pixels.

3. Use grid lines to separate:

.grid-container {
  display: grid;
  grid-template-columns: [col1-start] 200px [col2-start] 1fr [col2-end col3-start] 300px [col3-end];
}

The above code uses square brackets to specify the names of the grid lines. You can use these names in the layout. Alignment and positioning.

3. Application of grid layout attributes in panel layout

The grid layout attributes and grid-template-columns attributes are powerful tools for implementing panel layout. You can easily achieve the effect of a grid layout by dividing the panel into columns and setting different widths.

The following is a specific panel layout code example:

.panel-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 20px;
}

.panel {
  background-color: #f2f2f2;
  padding: 20px;
}

In the above code, the .panel-container element is divided into two columns, and the width ratio of each column is 1:2. At the same time, by setting the gap attribute, the interval between columns is defined to be 20 pixels.

Then we add two sub-elements .panel to the .panel-container element, which are displayed as the content of the panel:

<div class="panel-container">
  <div class="panel">
    内容 1
  </div>
  <div class="panel">
    内容 2
  </div>
</div>

With this layout, we can quickly create a .panel with two A page with two panels, the width ratio of each panel is 1:2, and has a more beautiful appearance.

Summary:

CSS’s grid layout attribute and grid-template-columns attribute provide powerful functions that can easily implement complex grid layouts. In the panel layout, by setting the grid-template-columns attribute, we can flexibly control the number and column width of the panel to achieve different layout effects. Whether it is column layout, responsive layout or other complex layout structures, the grid layout attribute can easily handle it.

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