Cursor does not start at the first field

Hello,

I have rearranged checkout fields as follows:
1. email
2. phone
3. first name
4. last name
… etc

If a guest adds a product to cart and visits checkout page, the cursor automatically starts blinking at the ‘first name’ field, bypassing the first 2 fields in the checkout form.

What do i have to do to make the cursor start at the email field (which is now field #1) instead of field #3 (first name)?

Thanks,
Ezz