单击后如何在SELECT多行中进行选择？

Question

I have a drop down with items in it that overflow horizontally but I want to make an option multi-line when I click it so that I can see it all.

I can try a tool tip but I know the tool tip doesn't last long.

How can I implement this multiline idea or something similar that would work without having to introduce jquery ui and all that?

Answer 1

Theoretically this should do it

$('#identifier').focus(function(){
    $(this).attr('multiple','multiple');
});