Skip welcome & menu and move to editor
Welcome to JS Bin
Load cached copy from
 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>
  <div id="container">
    <div id="block"></div>
    <div id="arm">
      <div id="string"></div>
      <div id="ball">
        <div id="ball-highlight">
        </div>
      </div>
    </div>
  </div>
</body>
</html>
 
div {
  position: relative;
  padding: 0;
  margin: 0;
}
#container {
  border: 1px solid black;
  height: 400px;
  width: 400px;
}
#block {
  background: black;
  width: 40px;
  height: 5px;
  left: 180px;
  top: 15px;
}
#arm {
  position: absolute;
  left: 200px;
  top: 0px;
  transform-origin: 0px 20px;
  rotate: z 45deg;
}
#ball {
  background: rgba(180, 180, 180, 0.5);
  border-radius: 50%;
  height: 40px;
  width: 40px;
  top: 0;
  left: 200px;
}
#ball-highlight {
  background: radial-gradient(circle at 65% 15%,
                              white 1px, aqua 3%, darkblue 60%, aqua 100%);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  top: 0;
  left: 0;
  rotate: -45deg;
  position: relative;
}
#string {
  background: black;
  width: 200px;
  height: 1px;
  top: 20px;
  left: 0px;
}
 
const arm = document.getElementById('arm');
arm.animate([
  {
    rotate: "z 45deg",
    offset: 0,
    easing:"cubic-bezier(0.33,0.05,0.67,0.43"
  },
  {
    rotate: "z 90deg",
    offset: 0.25,
    easing: "cubic-bezier(0.33,0.57,0.67,0.95)"
  },
  {
    rotate: "z 135deg",
    offset: 0.5,
    easing: "cubic-bezier(0.33,0.05,0.67,0.43)"
  },
  {
    rotate: "z 90deg",
    offset: 0.75,
    easing: "cubic-bezier(0.33,0.57,0.67,0.95)"
  },
  {rotate: "z 45deg", offset: 1}],
  {duration: 2000, iterations: Infinity });
const highlight = 
  document.getElementById('ball-highlight');
highlight.animate([
  {
    rotate: "z -45deg",
    offset: 0,
    easing:"cubic-bezier(0.33,0.05,0.67,0.43"
  },
  {
    rotate: "z -90deg",
    offset: 0.25,
    easing: "cubic-bezier(0.33,0.57,0.67,0.95)"
  },
  {
    rotate: "z -135deg",
    offset: 0.5,
    easing: "cubic-bezier(0.33,0.05,0.67,0.43)"
  },
  {
    rotate: "z -90deg",
    offset: 0.75,
    easing: "cubic-bezier(0.33,0.57,0.67,0.95)"
  },
  {rotate: "z -45deg", offset: 1}],
  {duration: 2000, iterations: Infinity });
Output 300px

You can jump to the latest bin by adding /latest to your URL

Dismiss x
public
Bin info
anonymouspro
0viewers