Make a background color disappear on a specified button when i click on a different button : So i want to set a background color white on my button called (.start_timer) when i click on my button called (.stop_timer) but when i do it i trigger all my .start_timer buttons ofc. But i need that one specified button. Can i make a ID on my buttons or what can i do ? 

How you understands what my problem is :) 

<!-- begin snippet: js hide: false console: true babel: false -->

<!-- language: lang-js -->

    $(this).css("background","red").delay(1000)
             .queue(function() {
                $(this).css("background", "white").dequeue();
                $(".start_timer").click(function() {
                $(this).css("background","white");
       });
              });
    });






 