Contact Form 7 wordpress plugin let you add placeholder text and thus you can get rid of the standard Your Name (required) next to the input fields and use HTML5 Placeholder.
This is how a placeholder can be added in Contact Form 7.
[text your-name placeholder "Your name here"]
Placeholder in contact form 7 can be used for fields like text, email, url, tel, textarea, number, range, date, and captchar.
