css border modification implementation code

Author：Eve Cole Update Time：2024-12-19 17:24:13

1. Set the line style

Through the border-style attribute setting, some selectable attributes are as follows:

dotted : dotted line dashed : dotted line solid : solid line double : double solid line

The effect is as follows:

2. Set the border line width

① Set the upper, lower, left and right borders as a whole through border-width

 border-width: 5px;

The effect is as follows:

② Set the width of the border in four directions respectively

border-left-width : Set the left border width border-right-width : Set the right border width border-top-width : Set the top border width border-bottom-width : Set the bottom border width

 border-left-width: 20px;
border-top-width: 15px;
border-right-width: 10px;
border-bottom-width: 5px;

The effect is as follows:

3. Set the border color

① Set the border color in four directions through the border-color attribute

 border-color: red;

The effect is as follows:

② Set the border colors in four directions respectively

border-left-color : Set the left border color border-top-color : Set the top border color border-right-color : Set the right border color border-bottom-color : Set the bottom border color

 border-left-color: red;
border-top-color: green;
border-right-color: blue;
border-bottom-color: blueviolet;

The effect is as follows:

4. Set rounded corners borders

① Set four rounded corners as a whole through the border-radius attribute

 border-radius: 50px;

The effect is as follows:

② Set rounded corners in four directions respectively

border-top-left-radius : Set the upper left corner rounded border-bottom-left-radius : Set the lower left corner rounded border-top-right-radius : Set the upper right corner rounded border-bottom-right-radius : Set the lower right corner rounded corners

 border-top-left-radius: 50px;
 border-bottom-left-radius: 20px;
 border-top-right-radius: 10px;
 border-bottom-right-radius: 10px;

The effect is as follows:

Note: When modifying the border, the border line style and border width must be set before it will be displayed!!

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