Change language for phone number in contact form

Hi, I need to change the language for the phone section of my Spanish site's contact form (see here).

I already found code in a previous post to change the name prompts, but am unable to do the same for the phone number.

This is the code I used for the Name. I pasted it under Page Settings > Advanced:

<style>
  /* First name */
.field.first-name .caption-text {
    visibility: hidden;
}
.field.first-name .caption-text:before {
    visibility: visible;
    content: "Nombre";
}
/* last name */
.field.last-name .caption-text {
    visibility: hidden;
}
.field.last-name .caption-text:before {
    visibility: visible;
    content: "Apellido";
</style>

I need to have the word "Country" (for the country code drop down menu) changed to "País" and the word "Number" to "Número". 

Please help and thank you in advance!

3 hours ago, constanzapsi said:

I need to change the language for the phone section of my Spanish site's contact form

Have you tried changing the site language to Spanish, in the Language and region settings?

I ended up solving the issue with the help of @tuanphan. Thank you so much to both!

On 8/23/2023 at 4:18 AM, constanzapsi said:

I ended up solving the issue with the help of @tuanphan. Thank you so much to both!

Hi, may I know how you solve this?