This is my code :
HTML
<div class="box-booking-item">
    <a href="javascript:void(0);" class="box-booking-item-content">
        <span class="box-booking-tendina">
            <span id="tendina_128" class="box-booking-tendina-elemento">Field 1</span>
            <span id="tendina_147" class="box-booking-tendina-elemento">Field 2</span>
            <span id="tendina_149" class="box-booking-tendina-elemento">Field 3</span>
            <span id="tendina_151" class="box-booking-tendina-elemento">Field 4</span>
            <span id="tendina_152" class="box-booking-tendina-elemento">Field 5</span>
        </span>
    </a>
</div>    
CSS
.box-booking-item
{
    position:relative;
    width:100px;
}
.box-booking-item-content
{
    width:100%;
    cursor:pointer;  
}
.box-booking-tendina
{
    display:block;
    overflow-y: scroll;
    height:80px;
}
.box-booking-tendina-elemento
{
    height:22px;
    display:block;
}
Try, on Firefox (I have the 12.0, but tried with 10.0 and 11.0, it's the same), to click on the scroll bar, and scroll to down/up (pressing the bar, not using the arrow up and down). It's like it "drags" the whole container div.
Why this behaviour? And how can I fix this?
 
     
    