css3绘制八卦图及动画效果

98 阅读 0 评论 65 点赞

我是靠谱客的博主失眠冷风，这篇文章主要介绍css3绘制八卦图及动画效果，现在分享给大家，希望可以做个参考。

原理很简单，就是外面加个盒子box。作为旋转动画的box，然后里面分别利用两个div使用css3的 border-radius绘制半圆，分别定位在上下中间对齐两个位置，里面在放两个小的原点水平和垂直方向对齐即可实现。然后在使用Css3的animation属性制作动画。效果如下图。
这里写图片描述

复制代码

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>css3绘制八卦图及动画效果</title>
<style>
* {
padding: 0;
margin: 0;
}
.box {
margin: 100px auto;
width: 400px;
height:400px;
border-radius:200px;
box-shadow:0 0 10px #999;
position:relative;
animation:circleRotate 3s linear 2s infinite;
}
.semi-circle{
height:400px;
width:200px;
}
.box .left{
background:#000;
border-top-left-radius:200px;
border-bottom-left-radius:200px;
}
.box .right{
background:#fff;
border-top-left-radius:200px;
border-bottom-left-radius:200px;
}
.box .top-circle{
position:absolute;
left:100px;
top:0;
height:200px;
width:200px;
text-align:center;
line-height:200px;
border-radius:100px;
background:#000;
}
.box .bottom-circle{
position:absolute;
left:100px;
bottom:0;
height:200px;
width:200px;
text-align:center;
line-height:200px;
border-radius:100px;
background:#fff;
}
.box .small-circle{
display:inline-block;
height:40px;
width:40px;
border-radius:20px;
background:red;
}
.box .white{background:#fff;}
.box .black{background:#000;}
@keyframes circleRotate{
%0{
transform:rotate(0deg);
}
100%{
transform:rotate(360deg);
}
}
</style>
</head>
<body>
<div class="box">
<div class="semi-circle left"></div>
<div class="semi-circle right"></div>
<div class="top-circle">
<span class="small-circle white"></span>
</div>
<div class="bottom-circle">
<span class="small-circle black"></span>
</div>
</div>
</body>
</html>

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>css3绘制八卦图及动画效果</title>
<style>
* {
padding: 0;
margin: 0;
}
.box {
margin: 100px auto;
width: 400px;
height:400px;
border-radius:200px;
box-shadow:0 0 10px #999;
position:relative;
animation:circleRotate 3s linear 2s infinite;
}
.semi-circle{
height:400px;
width:200px;
}
.box .left{
background:#000;
border-top-left-radius:200px;
border-bottom-left-radius:200px;
}
.box .right{
background:#fff;
border-top-left-radius:200px;
border-bottom-left-radius:200px;
}
.box .top-circle{
position:absolute;
left:100px;
top:0;
height:200px;
width:200px;
text-align:center;
line-height:200px;
border-radius:100px;
background:#000;
}
.box .bottom-circle{
position:absolute;
left:100px;
bottom:0;
height:200px;
width:200px;
text-align:center;
line-height:200px;
border-radius:100px;
background:#fff;
}
.box .small-circle{
display:inline-block;
height:40px;
width:40px;
border-radius:20px;
background:red;
}
.box .white{background:#fff;}
.box .black{background:#000;}
@keyframes circleRotate{
%0{
transform:rotate(0deg);
}
100%{
transform:rotate(360deg);
}
}
</style>
</head>
<body>
<div class="box">
<div class="semi-circle left"></div>
<div class="semi-circle right"></div>
<div class="top-circle">
<span class="small-circle white"></span>
</div>
<div class="bottom-circle">
<span class="small-circle black"></span>
</div>
</div>
</body>
</html>