Change button color in WordPress Twenty Seventeen themes

Change “Post comment” button color. Please follow these steps:

1. Go to Appearance → Customize.
2. Select “Additional CSS”. Then insert the following CSS: input.submit.submit {
   background-color: orange;
   color: white;
   }

Change ” Send” button color in Contact Form 7. Please follow these steps:

1. Go to Appearance → Customize.
2. Select “Additional CSS”. Then insert the following CSS:
3. input.wpcf7-form-control.wpcf7-submit {
4. background-color: orange;
5. color: white;
6. }