The scroll wheel event is disabled in the select drop-down box.

In web development, the drop-down box selects a large number of components. The general statement is:

<Select name = "selece" id = "ID">
<Option> Select... </option>
</SELECT>

This method is commonly used.

When we select a select item, select gets the current focus. Scroll the scroll wheel to scroll the content in the select drop-down list. The selection is incorrect.

In this case, we use the following method. Select mouse wheel disabled

<Select name = "select" id = "ID" onmousewheel = "Return false">
<Option> Select... </option>
</SELECT>