Je souhaite pouvoir coller le bouton de submission à droite d'un champ de texte

Hello.

In order to move the Submit button next to the email field, you would first need to Shrink both fields.

After you have shrunk both fields, right-click on the submit button and select Merge to above line.

After doing that, all we need now is to vertically center the submit button with the email field. For example, in your form http://www.jotformeu.com/form/51314262553347, we would center it by injecting the following custom CSS into your form:

.form-submit-button { margin-top: 25px; }

Your form would now display like this:

You can adjust the margin-top value to better position the submit button as you want it to.

Please try it out and let us know how it goes.