Validating multiple text fields
HTML5 input types are displayed as simple input fields in older web browsers that do not support these HTML5 features.
The example below shows these HTML5 input types in action.
For example, telephone numbers are written with different separators and digit groupings.
Your form will be easier to use if it can interpret multiple notations. For example, postal codes aren't confined to just numbers in some countries, so using an can easily become a problem for many of your website users.
In the example below, the attribute is added to the input field.
In addition to providing instructions, validate user input to help users avoid mistakes.
HTML5 defines a range of built-in functionality to validate common types of input, such as email addresses and dates.
The option of using pure HTML, sometimes with a touch of CSS, to complement Java Script form validation was until recently unthinkable.
Sure there have been all kinds of whacky plug-ins over the years aimed at achieving this, but never a single standard that we could work towards.