Bootstrap Forms: Inputs, Labels, and Validation States | Bootstrap Forms Tutorial

Published: 14 August 2026
on channel: Web Development Tutorials

form-control alone turns a plain text input into a properly padded, bordered, focus-styled field -- and is-invalid adds a real validation state on top.

In this Bootstrap tutorial, you'll learn:
• form-label styles the label with proper spacing below it.
• form-control gives the input real padding, border, and a focus state.
• is-invalid adds a red border and validation styling.
• invalid-feedback shows red helper text, paired with is-invalid.

Try it yourself: Try building a labeled email input and adding is-invalid plus an invalid-feedback message.

This is part 7/22 of our free Bootstrap tutorial series for beginners -- new lessons every week.
👍 Subscribe for more web development tutorials!

On this page of the site you can watch the video online Bootstrap Forms: Inputs, Labels, and Validation States | Bootstrap Forms Tutorial with a duration of hours minute second in good quality, which was uploaded by the user Web Development Tutorials 14 August 2026, share the link with friends and acquaintances, this video has already been watched times on youtube and it was liked by 0 viewers. Enjoy your viewing!

187