Special Writing of JavaScript CSS float attributes

1. for CSS attributes without hyphens, you can directly use style. attribute name.
For example, obj. style. margin, obj. style. Width, obj. style. Left, obj. style. Position, etc.

2. for CSS attributes that contain dashes, remove each dashes and replace the first character after each dashes with uppercase letters.
For example, obj. style. margintop, obj. style. borderleftwidth, obj. style. zindex, obj. style. fontfamily, etc.

I think most front-end developers are familiar with this rule. It is really special to use JS with a special attribute in CSS.
This special attribute is: float. We cannot directly use obj. style. Float. This operation is invalid.
The correct method is: (ie, opera): obj. style. stylefloat, other browsers (Firefox): obj.style.css float