Item-floating-label with error validation


Hi… need some help…
My sign-up page built with ionicModal and try to use item-floating-label with validation ngMessages and the result is just like below picture

  1. how to change the font-size and color of the floating label ?
  2. (shown in picture) when i input “My Last Name” the error was gone but as you can see, there are 2 line divider below the “My Last Name”. How to correct this ?

I want to style it just like the material design below…

Thks in advance