If we ever try to set the float of an element through Javascript, setting the element float as below is not possible because the javascript DOM doesn’t have a definiton for float on style property. 
element.style.float="left";
Solutions for this are dependent on the Browsers
  • cssFloat for Firefox, Opera, Safari & Edge 
    element.style.cssFloat="left";
  • For IE 
    element.style.styleFloat="left";
Not only this property, the standard things to check while writing Javascript are
  • Does DOM consists of what we are writing?
  • Are we following naming convention matching to browsers DOM 
    element.style.padding="0px"; // started with small letter 
element.style.paddingLeft="0px"; //each pronounced word is capitalized
  • Do we assign values as DOM is expecting from us? 
    style.width="100px" //valid 
style.width=100; //is invalid