containervisibleonclickbymobe v1.0.0

#dropdownmenu & image slider

The dropdownMenu function takes 4 parameters. 1. The first is queryselector for the element that is triggering the event (ContainerVisible). 2. Second parameter is queryselector for the container that is made visible. 3. The third parameter is the value for display for example "block, "flex", etc to be made visible. 4. 4th takes queryselector as parameter for a cancelbutton element.