Miért nem valid az oldalam?

1. Legacy encoding windows-1252 used. Documents should use UTF-8.

2. Error: Bad value ”1” for attribute size on element select: Expected a digit but saw ” instead.

From line 131, column 2; to line 131, column 28

m:* <br>↩ <select name="Év" size=”1”>↩

Syntax of positive integer:

One or more digits (0–9), with at least one which is non-zero. For example: 42 is valid, but 00 is not.

3. Warning: The details element is not supported properly by browsers yet. It would probably be better to wait for implementations.

From line 141, column 3; to line 141, column 11

<caption>↩ <details>↩ <summary>

Ezeket a hibákat irja nem tudom, hogy mit jelentenek pontosan.