Frontend form Validation

[MattGreyDesign]

Frontend validation
http://projects.joreteg.com/Happy.js/

https://css-tricks.com/form-validation-ux-html-css/
http://developer.telerik.com/featured/building-html5-form-validation-bubble-replacements/

https://www.telerik.com/blogs/building-html5-form-validation-bubble-replacements