How to set the number of options displayed in the select drop-down menu, selectoption

How to set the number of options displayed in the select drop-down menu, selectoption

How to set the number of option items displayed in the select drop-down menu:

This section describes how to set the number of visible option items in the select drop-down menu. The Code is as follows:

<! DOCTYPE html>  
You only need to add the size attribute to the select tag, which has certain compatibility issues. Of course, Google does not support this attribute.