为什么此JavaScript css过滤器代码在Firefox中有效但在Chrome中不起作用？

Question

过滤器在Firefox（43.0.1）中协同工作，但在Chrome（57.0.2987.133）中不起作用。 在Chrome浏览器中，当我将鼠标移到另一个滑块上时，上一个滑块的调整将被删除。 关于图像过滤器，存在类似的问题，但确实适用于Firefox与Chrome的问题。

 var degrees=0; var percentB=100; var percentC=100; function setValues() { form1.brightness.value=100; form1.contrast.value=100; form1.hue.value=0; } function bright() { percentB=form1.brightness.value; document.getElementById("I").style.filter="brightness("+parseInt(percentB)+"%)"+" contrast("+parseInt(percentC)+"%)"+" hue-rotate("+parseInt(degrees)+"deg)"; } function cont() { percentC=form1.contrast.value; document.getElementById("I").style.filter="brightness("+parseInt(percentB)+"%)"+" contrast("+parseInt(percentC)+"%)"+" hue-rotate("+parseInt(degrees)+"deg)"; } function hues() { degrees=form1.hue.value; document.getElementById("I").style.filter="brightness("+parseInt(percentB)+"%)"+" contrast("+parseInt(percentC)+"%)"+" hue-rotate("+parseInt(degrees)+"deg)"; } 

 <img src="xbutterfly.jpg" alt="Colorful Flowers" width="800" height="533" id="I" /><br><br> <form name="form1" id="form1id" style="font-size:90%; text-align:center;"> Brightness: <input type="range" name="brightness" min="0" max="200" step="5" onmousemove="bright()" style="vertical-align:-7px;" />&nbsp; &nbsp; Contrast: <input type="range" name="contrast" min="0" max="200" step="5" onmousemove="cont()" style="vertical-align:-7px;" />&nbsp; &nbsp; Hue: <input type="range" name="hue" min="0" max="360" step="5" onmousemove="hues()" style="vertical-align:-7px;" /> </form> 

Answer 1

经过2个小时的奋战，我在发布问题后终于找到了解决方案：将所有内容组合到一个函数中。

新的HTML：

   <img src="xbutterfly.jpg" alt="Colorful Flowers" width="800" height="533" id="I" /><br><br>  
   <form name="form1" id="form1id" style="font-size:90%; text-align:center;">
    Brightness: <input type="range" name="brightness" min="0" max="200" step="5" onmousemove="apply()" style="vertical-align:-7px;" />&nbsp; &nbsp;
    Contrast: <input type="range" name="contrast" min="0" max="200" step="5" onmousemove="apply()" style="vertical-align:-7px;"/>&nbsp; &nbsp;
    Hue: <input type="range" name="hue" min="0" max="360" step="5" onmousemove="apply()" style="vertical-align:-7px;"/> 
   </form>

新的JavaScript：

  <script type="text/javascript">
  <!--

  var degrees = 0;
  var percentB = 100; 
  var percentC = 100;

  function setValues()
  {      
    form1.brightness.value = 100;
    form1.contrast.value = 100;
    form1.hue.value = 0;      
  }

  function apply()
  { 
    degrees = form1.hue.value;
    percentC = form1.contrast.value;
    percentB = form1.brightness.value;  
    document.getElementById("I").style.filter = "brightness(" + parseInt(percentB) + "%)" + " contrast(" + parseInt(percentC) + "%)" + " hue-rotate(" + parseInt(degrees) + "deg)";   
    document.getElementById("I").style.WebkitFilter = "brightness(" + parseInt(percentB) + "%)" + " contrast(" + parseInt(percentC) + "%)" + " hue-rotate(" + parseInt(degrees) + "deg)"; // Not tested as I don't have these browsers. Used for older versions of Safari, Chrome, and Opera per https://www.w3schools.com/jsref/prop_style_filter.asp  
  }

  --> 
  </script>