What are css grid layout and flex layout?

In css, the grid layout refers to the "grid layout", which is a two-dimensional system that can handle rows and columns at the same time. You can use the grid layout by applying CSS rules to the parent element and the child elements of the element; and Flex layout refers to "flexible layout" and is a one-dimensional system used to provide maximum flexibility for box models.



(Recommended tutorial: CSS video tutorial)

1. Introduction to flex layout

Flex is an introduction to flexible box (flexible layout). It is a one-dimensional system that provides maximum flexibility for box models.

Use: any container (inline elements can be set to display: inline-block);

Features: spatial distribution is carried out in the line, not the whole

2. Introduction to grid layout

Gird Layout (css grid layout) is the most powerful layout in CSS The system is a two-dimensional system that can handle rows and columns at the same time. You can use the grid layout by applying CSS rules to the parent element (grid container) and the element's child elements (grid element).

Use: set dispay for the parent element: grid; grid-template-colums and grid-template-rows to set several rows and several columns, and then set the child elements to occupy several rows and several columns.

Features: two-dimensional grid structure, very easy to operate and

combat One: Use grid layout to make a simple

html code of nine square grid :

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css code:

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.box{     width: 1200px;     height: 80vh;     display: grid; // enable grid layout     grid-template-columns: repeat(3,30%); / / Set the column     grid-template-rows: repeat(3,30%); // Set the     grid-column-gap: 20px; // Set the spacing between grids     grid-row-gap: 20px; // Set the grid     Space between grids } .box div{ background-color: #34ce57; } Actual combat 2: Make a common website layout html code: 1 2 3 4 5 6 7 8 9














































 



    

header



    



        

left



        

center



        

right



    



    

footer


 



css code:

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.box {     width: 1200px;     height: 80vh;     display: grid; // Open grid layout     grid-template-rows: 10% 80% 10%; // Set the number of rows } .header {     background-color: #6ac13c;















    display: grid;

    /*居中*/

    align-content: center;

    justify-content: center;

}

.content {

    /*background-color: #f1b0b7;*/

    display: grid;

    grid-template-columns: 10% 80% 10%;

    grid-gap: 20px;  // 网格之间的间隔

}

.footer {

    background-color: #ffc107;

    display: grid;

    align-items: center;

    justify-content: center;

}

.left {

    background-color: #5599FF;

}

.center {

    background-color: lightgreen;

}

.right {

    background-color: orchid;

}

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Origin blog.csdn.net/hdl17822307857/article/details/112662241