How to draw triangles with transform: rotate and overflow: hidden by css

This article is about how css uses transform: rotate to draw triangles with overflow: hidden. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Drawing triangles with transform: rotate and overflow: hidden

This method is relatively conventional, using transform: rotate with overflow: hidden. You can understand it as soon as you see it, and you can learn it as soon as you learn. the simple animation diagram is as follows:

Set the rotation center of the drawing in the lower left corner left bottom, rotate, with overflow: hidden.

The complete code:

Html, body {width: 100%; height: 100%; display: flex;} div {width: 141px; height: 100px; margin: auto;}. Demo-opacity {overflow: hidden;} .demo, .demo-opacity {position: relative; border: 1px solid # 000; background: unset; &:: before {content: "; position: absolute; top: 0; left: 0 Right: 0; bottom: 0; animation: conicmove 3s infinite linear; background: deeppink; transform-origin: left bottom; z-index:-1;}}. Triangle {position: relative; background: unset; overflow: hidden; &:: before {content: "; position: absolute; top: 0; left: 0 Right: 0; bottom: 0; background: deeppink; transform-origin: left bottom; transform: rotate (45deg); z-index:-1;}} @ keyframes conicmove {100% {transform: rotate (45deg);}} Thank you for reading! This is the end of this article on "how css uses transform: rotate with overflow: hidden to draw triangles". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it out for more people to see!