Mootools叠加淡入

Question

你好，你如何在mootools中很好地淡化？

var el = $$('div.img_wrapper');

el.addEvents({
    mouseenter: function(){
        fade in div
    },
    mouseleave: function(){
        fade out div
    }
});

Answer 1

mouseenter: function(){
  this.fade('in');
}, 

//this can't be zero or the mouseenter won't fire
mouseleave: function(){
  this.fade(.001);   
}