标签:front round 预览 target href 实战 span back -o
按下右侧的“点击预览”按钮可以在当前页面预览,点击链接可以全屏预览。
https://codepen.io/comehope/pen/RyvgMZ
此视频是可以交互的,你可以随时暂停视频,编辑视频中的代码。
请用 chrome, safari, edge 打开观看。
每日前端实战系列的全部源代码请从 github 下载:
https://github.com/comehope/front-end-daily-challenges
定义 dom,一个容器中包含 3 个 <span>:
<div class="penrose">
<span></span>
<span></span>
<span></span>
</div>
居中显示:
html,
body {
height: 100%;
display: flex;
align-items: center;
justify-content: center;
background-color: black;
}
定义容器尺寸:
.penrose {
width: 20em;
height: 20em;
}
画出包含 3 条边的容器:
.penrose {
position: relative;
}
.penrose span {
position: absolute;
width: 100%;
height: 100%;
}
.penrose span:nth-child(1) {
transform: rotate(0deg);
}
.penrose span:nth-child(2) {
transform: rotate(120deg);
}
.penrose span:nth-child(3) {
transform: rotate(240deg);
}
为 3 条边所属的容器上色:
.penrose {
color: red;
}
.penrose span {
background-color: currentColor;
}
.penrose span:nth-child(1) {
filter: brightness(1);
}
.penrose span:nth-child(2) {
filter: brightness(0.66);
}
.penrose span:nth-child(3) {
filter: brightness(0.33);
}
用遮罩切出每一条边,组成彭罗斯三角形:
.penrose span {
clip-path: polygon(57% 0, 75% 0, 26% 85%, 89.5% 85%, 98.4% 100%, 0 100%);
}
.penrose span:nth-child(2) {
top: 18.3%;
left: 43.3%;
}
.penrose span:nth-child(3) {
top: 46.5%;
left: 5.9%;
}
定义旋转动画效果:
.penrose {
animation: rotating 30s linear infinite;
transform-origin: 66% 66%;
}
@keyframes rotating {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
最后,增加旋转时变色的效果:
@keyframes rotating {
0% {
color: red;
transform: rotate(0deg);
}
20% {
color: yellow;
}
40% {
color: lime;
}
60% {
color: blue;
}
80% {
color: fuchsia;
}
100% {
color: red;
transform: rotate(720deg);
}
}
大功告成!
原文地址:https://segmentfault.com/a/1190000014946883
标签:front round 预览 target href 实战 span back -o
原文地址:https://www.cnblogs.com/datiangou/p/9994285.html