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This article mainly shows you "what is the writing method of triangle code under css". It is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn "what is the writing method of triangle code under css".

Write: 1, use the "border: length value solid transparent" statement to set a width and height of 0 div element border to transparent; 2, use the "border-top: height value solid color value" statement to display the upper border of the div element transparent border, you can show a lower triangle.

The operating environment of this tutorial: windows10 system, CSS3&&HTML5 version, Dell G3 computer.

In css, we can create a border style through the border attribute to implement the lower triangle.

First we need a div element with a width and height of 0, then use the border property to style the border of div, set the thickness of the border to half the length of the bottom triangle, and set the border color to transparent.

Finally, the top border of the div element is displayed through the border-top attribute.

Examples are as follows:

Document div {width: 0; height: 0; border: 100px solid transparent; border-top: 100px solid red;}

Output result:

The above is all the contents of the article "how to write the triangle code under css". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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