You can not use the If else condition in HTML code (Without JavaScript). Because HTML is a markup language and not a programming language. You need to do logic codes either server-side or with Javascript.
If else condition in HTML code
Simple example code.
<!DOCTYPE html>
<html>
<head>
<script>
var age=20;
var ans;
if (age < 18) {
ans = "Underage"
} else {
ans = "Let em in!";
}
</script>
</head>
<body>
<script>
document.write(ans)
</script>
</body>
</html>Output:
Do comment if you have any doubts or suggestions on this HTML code.
Note: The All HTML Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version