Pure CSS Icons
HTML
<link href='http://fonts.googleapis.com/css?family=Quicksand' rel='stylesheet'>
<i class='icono-exclamationCircle'></i>
JavaScript
$(".icono-exclamationCircle").click(function() {
var display = $("#tooltip_b1").css("display");
if (display == "none") {
$("#tooltip_b1").css("display", "inline-block");
} else {
$("#tooltip_b1").css("display", "none");
}
})