I am using Slideshow plugin and am having problem with vertical scroll bar, overflow on y-axis. Here is my CSS.

One of the slides content is more than 160px height and auto overflow is not working as intended. The vertical scroll bar appears only if I move the mouse. If I do not move the mouse, the extra content is hidden and no scroll bar appears. Anyone came across the same issue ? Please help me with the fix. Thanks.

/* container for slides */
.images {
background:#fff url(h300.png) repeat-x;
border:1px solid #666;
position:relative;
height:200px;
width:500px;
float:left;
margin:15px;
cursor:pointer;
}

/* single slide */
.images div {
display:none;
position:absolute;
top:0;
left:0;
margin:7px;
padding:15px 15px 15px 15px;
height:160px;
overflow-x: hidden;
overflow: auto;
font-size:12px;
}