A good practice or guideline is to design and develop a standard approach, which has always shown better results.
Some of the best practices to create effective forms are as follows:
Use relevant content groupings to organize forms
Minimize the amount of help and tips required to fill out a form
Employ flexible data entry
For long forms, show progress and save options
Maintain a consistent approach
Maintain a clear relationship between the initial selection options
Use inline validation of inputs that have potentially high error rates
Provide actionable remedies to correct errors
Disable the Submit button after a user clicks on it to avoid multiple submissions
Clearly communicate about the submission of data and provide feedback
Maintain separate files for CSS and JavaScript
Using best practices: