<!DOCTYPE html>
<html>
<style>
#myContainer {
width: 400px;
height: 400px;
position: relative;
background: yellow;
}
/*
center @ 25, 100
*/
#div1 {
width: 50px;
height: 200px;
position: absolute;
background-color: transpency;
}
/* 25 - w/2 = 50, 100 */
#div2 {
left: 0px;
top:100px;
width: 50px;
height: 100px;
position: absolute;
background-color: blue;
border-style: solid;
border-color: green;
}
/* 25 - w/2 = 50, 100 */
#diva {
width: 50px;
height: 200px;
position: absolute;
background-color: transpency;
}
/* 25 - w/2 = 50, 100 */
#divb {
left: 0px;
top:100px;
width: 50px;
height: 100px;
position: absolute;
background-color: blue;
border-style: solid;
border-color: green;
}
</style>
<body>
<p>
<button onclick="myMove()">Click Me</button>
</p>
<div id ="myContainer">
<div id="div1" style="top:0px; left:100px; transform: rotate(-30deg)">
<div id="div2">
<div id="diva" style="top:0px; left:0px; transform: rotate(10deg)">
<div id="divb">
</div>
</div>
</div>
</div>
<script>
function myMove() {
var pos = -30;
var dir = 1;
var c1 = document.getElementById("div1");
var ca = document.getElementById("diva");
var id = setInterval(frame, 10);
function frame() {
if (pos == 30) {
clearInterval(id);
} else {
redraw();
}
}
function redraw()
{
pos++;
//elem.style.top = pos + 'px';
//elem.style.left = pos + 'px';
c1.style.transform = "rotate(" + (pos) + "deg)";
ca.style.transform = "rotate(" + (pos) + "deg)";
}
}
</script>
</body>
</html>
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