<img src="http://img1.wgsails.com/yuetaojie/slider/227/193/089/index/輕復古.jpg" id="imgLogo" alt=""> 
<p id="moCalcTiltLR"></p> 

<p id="moCalcTiltFB"></p>

<script> 
function deviceMotionHandler(eventData) { 
    // 
  var acceleration = eventData.accelerationIncludingGravity; 
  
 
var facingUp = -1; 
  if (acceleration.z > 0) { 
    facingUp = +1; 
  }      
  var tiltLR = Math.round(((acceleration.x) / 9.81) * -90); 
  var tiltFB = Math.round(((acceleration.y + 9.81) / 9.81) * 90 * facingUp);

  document.getElementById("moCalcTiltLR").innerHTML = tiltLR; 
  document.getElementById(
 
"moCalcTiltFB").innerHTML = tiltFB; 
  var rotation = "rotate(" + tiltLR + "deg) rotate3d(1,0,0, " + (tiltFB) + "deg)"; 
  document.getElementById("imgLogo").style.webkitTransform = rotation;        
} 
// 
if (window.DeviceMotionEvent) { 
window.addEventListener('devicemotion',deviceMotionHandler, false
 
); 
}else{ 
    alert('親，你的瀏覽器不支援DeviceMotionEvent哦~'); 
} 
</script>