Answer:
HTLML and CSS code.
Step-by-step explanation:
Importance of a compatible website:
• Content in browsers looks the same in all of them.
• This is quite complicated, sometimes they are correctly seen in the most important ones, such as Chrome Explorer, Firefox, Opera, Safari and Mozilla.
• The problem is that not all browsers interpret HTML and CSS in the same way, among them there are small variations that are those that make the result is not the same from each other.
We always look for the web to work in the largest possible number of browsers.