Array.isArray doesn't work code example

Example 1: minlenght doesnt work on 0

This is by design. The minlength attribute only validates a field once 
it has been edited by the user. It doesn't validate the field if its 
value hasn't been changed, even if that value doesn't meet the 
constraint. --By: BoltClock on Github

Add "required" to the input tag to force the user to input something -- By: Me

Example 2: does boxshadow work

.shadow {
  -moz-box-shadow:    3px 3px 5px 6px #ccc;
  -webkit-box-shadow: 3px 3px 5px 6px #ccc;
  box-shadow:         3px 3px 5px 6px #ccc;
}