I find <form> has a property called 'id', i.e. 'product'.
If the <form> also has an ID in css, i.e.
The <form> will be:
<form id="product" id="myform" ....
I guess code above doesn't work (never test).
What can you do in the case?
Is it only solution to change ID #myform to class .myform?
What else you can do?
I believe this is important reason that people prefer class in css, do you think so?