Home >Web Front-end >CSS Tutorial >How to use pure CSS to implement a paper crane (source code attached)
The content of this article is about how to use pure CSS to realize a paper crane (with source code). It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you. help.
https://github.com/comehope/front-end-daily -challenges
Define dom, the container contains 6 elements, representing the head, neck, body side, wings, tail, and chest:
<div> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> </div>
Centered display :
body { margin: 0; height: 100vh; display: flex; align-items: center; justify-content: center; background-color: dodgerblue; }
Define the container size:
.cranes { width: 52em; height: 50em; font-size: 7px; }
Set the color of the paper crane to white:
.cranes { color: white; }
Draw the head:
.cranes { position: relative; } .head { border-left: 13em solid transparent; border-right: 6em solid transparent; border-bottom: 2em solid; position: absolute; left: 0; top: 21; transform: rotate(-5deg); }
Create a triangle with the above The code is abstracted into a template, and then the data is changed into variables, similar to calling a function:
.cranes span { border-left: calc(var(--left) * 1em) solid transparent; border-right: calc(var(--right) * 1em) solid transparent; border-bottom: calc(var(--bottom) * 1em) solid; position: absolute; transform: rotate(calc(var(--rotation) * 1deg)); left: calc(var(--x) * 1em); top: calc(var(--y) * 1em); } .head { --left: 13; --right: 6; --bottom: 2; --x: 0; --y: 21; --rotation: -5; }
Set the transparency so that there is an origami effect where the elements are overlaid:
.cranes span { filter: opacity(0.6); }
The next step is one by one Call the function that generates triangles to create other triangles:
Neck:
.neck { --left: 6; --right: 6; --bottom: 12; --x: 14; --y: 19; --rotation: 75; }
Sides of body:
.side { --left: 1.5; --right: 11.5; --bottom: 20; --x: 18.8; --y: 15.1; --rotation: 20; }
Wings:
.wing { --left: 18.7; --right: 30; --bottom: 8; --x: 6.7; --y: 9.2; --rotation: -41.9; }
Tail:
.tail { --left: 18.6; --right: 7.7; --bottom: 3.9; --x: 19.6; --y: 38.1; --rotation: -126.5; }
Chest:
.belly { --left: 6.2; --right: 1.8; --bottom: 11.5; --x: 17.5; --y: 27.8; --rotation: -99; }
At this point, the paper crane is finished.
Finally, add a little interactive effect. When the mouse is hovered, it will transform from an isosceles right triangle into a crane:
.cranes:hover span { animation: appear 1s ease-in; } @keyframes appear { from { border-left: 3em solid transparent; border-right: 3em solid transparent; border-bottom: 3em solid; position: absolute; transform: rotate(0deg); left: calc((52em - 3em) / 2); top: calc((50em - 3em) / 2); } }
You're done!
Related recommendations:
How to use pure CSS to implement the album icon of the Apple system (code)
How to use CSS and D3 to implement a small Interactive animation of fish swimming (with code)
The above is the detailed content of How to use pure CSS to implement a paper crane (source code attached). For more information, please follow other related articles on the PHP Chinese website!