I want to change the bottom property of an element.
I want it to have different delays on bottom increase and decrease, but if I set:
 transition-property: bottom;
        transition-delay: 0.3s;
        -moz-transition-delay: 0.3s;
        -webkit-transition-delay: 0.3s;
The js code: 
 set_bottom = function(control_bar_height){                                                           
 if(is_user_active){                                                                                     
    document.getElementById("video-link").style.bottom = control_bar_height + 30 + 'px';       
     }else{                                                                                                  
         document.getElementById("video-link").style.bottom = 30 + 'px';                           
     }                                                                                                       
 };
 this.on("useractive", function () {                                                                         
     is_user_active = true;                                                                                  
     set_bottom(this.controlBar.height());                                                            
 });                                                                                                         
it will set both bottom increase and decrease delays to 0.3s.
How may I do this?
