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focus on panel-group for panel-group accordian changes
Source Link

Or you can use simple CSS trick as follows:

/* prevent the active panel from collapsing */ .panel-group [aria-expanded=true]{ /* http://caniuse.com/#feat=pointer-events Works for MOST modern browsers. (- Opera Mobile) */ pointer-events: none; } 

must have proper tags on the inactive panel links

 aria-expanded="false" 

Or you can use simple CSS trick as follows:

[aria-expanded=true]{ pointer-events: none; } 

Or you can use simple CSS trick as follows:

/* prevent the active panel from collapsing */ .panel-group [aria-expanded=true]{ /* http://caniuse.com/#feat=pointer-events Works for MOST modern browsers. (- Opera Mobile) */ pointer-events: none; } 

must have proper tags on the inactive panel links

 aria-expanded="false" 
Source Link

Or you can use simple CSS trick as follows:

[aria-expanded=true]{ pointer-events: none; }