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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="style.css">
<title>Spin Wheel</title>
</head>
<body>
<div class="container">
<div class="spinBtn">开始抽奖</div>
<div class="wheel">
<div class="number" style="--i:1;--clr:#db7093;"><span>100</span></div>
<div class="number" style="--i:2;--clr:#82db70;"><span>1</span></div>
<div class="number" style="--i:3;--clr:#8070db;"><span>50</span></div>
<div class="number" style="--i:4;--clr:#c6db70;"><span>0</span></div>
<div class="number" style="--i:5;--clr:#db9e70;"><span>1000</span></div>
<div class="number" style="--i:6;--clr:#db7070;"><span>10</span></div>
<div class="number" style="--i:7;--clr:#70cfdb;"><span>5</span></div>
<div class="number" style="--i:8;--clr:#db70b9;"><span>20</span></div>
</div>
</div>
<script>
const btn = document.querySelector(".spinBtn");
const wheel = document.querySelector(".wheel");
let value = Math.ceil(Math.random()*3600)
btn.onclick= function(){
wheel.style.transform = "rotate("+value+"deg)";
value = Math.ceil(Math.random()*3600)
}
</script>
</body>
</html>
style.css
*{
padding: 0px;
margin: 0px;
box-sizing: border-box;
}
body{
display: flex;
align-items: center;
justify-content: center;
min-height: 100vh;
background: #333;
}
.container{
position: relative;
width:400px;
height: 400px;
display: flex;
align-items: center;
justify-content: center;
}
.container .spinBtn{
position: relative;
background-color: #fff;
width:60px;
height:60px;
background: #fff;
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
font-size: 0.1rem;
font-weight: 600;
border: 4px solid rgba(0,0,0,0.75);
cursor: pointer;
user-select: none;
z-index: 2;
}
.container .spinBtn::before{
content: '';
position: absolute;
top: -28px;
width: 20px;
height: 30px;
background-color: #fff;
clip-path: polygon(50% 0%,15% 100%,85% 100%)
}
.container .wheel{
position: absolute;
top:0;
left:0;
width: 100%;
height: 100%;
background: #333;
border-radius: 50%;
overflow: hidden;
box-shadow: 0 0 0 5px #333,
0 0 0 15px #fff,
0 0 0 18px #111;
transition: transform 5s ease-in-out;
}
.container .wheel .number {
position: absolute;
width: 50%;
height: 50%;
background: var(--clr);
transform-origin: bottom right;
transform: rotate(calc(45deg * var(--i)));
clip-path: polygon(0 0 ,56% 0, 100% 100% ,0 56%) ;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
user-select: none;
}
.container .wheel .number span{
position: relative;
transform: rotate(45deg);
font-size: 2em;
font-weight: 700;
color: #fff;
text-shadow: 3px 5px 2px rgba(0,0,0,0.15);
}
.container .wheel .number span::after{
content: "¥";
position: absolute;
font-size: 0.75em;
font-weight: 700;
}
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