为什么在Firefox中没有水平滚动条可供选择

Question

为什么FireFox中没有用于此类选择的水平滚动条？

<select style="width: 100px; overflow:auto;" size="10">
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
    <option>some long text to make it scroll</option>
</select>

它在Chrome中的功能非常完美 http://jsfiddle.net/r4gnLymr/

Answer 1

＆＃13;

＆＃13;

div{   
 overflow-x:auto;
 overflow-y:auto;   
 }

＆＃13;

<div style="width:140px;">
    <select name="selectbox" size="5"  id="selectbox" >
        <option value="1">one two three four five six seven eight</option>
        <option value="2">seven eight</option>
        <option value="3">nine ten</option>
        <option value="1">one two three four five six</option>
        <option value="2">seven eight</option>
        <option value="3">nine ten</option>
        <option value="1">one two three four five six</option>
        <option value="2">seven eight</option>
        <option value="3">nine ten</option>
        <option value="1">one two three four five six</option>
        <option value="2">seven eight</option>
        <option value="3">nine ten</option>
    </select>
</div>

＆＃13;

＆＃13;

＆＃13;

这一个来自Select box html horizontal scroll并显示水平滚动条。