regula - regex For Float Numbers with Limits -

i need regex expression floating , whole numbers have limit accept 1 or 2 digit before point , 1 or 2 digits after point. whole number limit should 2 digit. should valid:

 - 1.1  - 11.1  - 1.11  - 11.11  - 2  - 22  should invalid:   - 111.111  - 222 here regex: /^\d{1,2}(\.\d){1,2}?$/   not working kindly me in 

use following pattern:

^\d{1,2}(?:\.\d{1,2})?$ 

see the regex demo.

details:

• ^ - start of string
• \d{1,2} - 1 or 2 digits
• (?:\.\d{1,2})? - optional sequence of:
  • \. - dot
  • \d{1,2} - 1 or 2 digits
• $ - end of string.