<label><input type="checkbox" name="w3tr"> w3tr</label>
<label><input type="checkbox" name="w3tr"> w3tr</label>
jQuery.fn.extend({
check: function() {
return this.each(function() {
this.checked = true;
});
},
uncheck: function() {
return this.each(function() {
this.checked = false;
});
}
});
$( "input[type='checkbox']" ).check();
This Pen doesn't use any external CSS resources.