how to expand navigation menu by default in oracle APEX

how to expand navigation menu by default  in oracle APEX 

Ceate Dyanmic Action on Page  
event : Page Load 

action : Execute Server-side Code

$("#t_PageBody").removeClass("js-navCollapsed"); 

$("#t_PageBody").addClass("js-navExpanded"); 

$("#t_Button_navControl").addClass("is-active"); 

$("#t_Button_navControl").attr("aria-expanded","true");