Hi,
You can place this on your custom.css, play around with the style.
#top .caption-slideshow-button {
border-radius: 50%;
width: 100px;
height: 60px;
background-color: red;
text-align: center;
vertical-align: bottom;
padding-top: 40px;
border: none;
color: #666;
background-image: url("../images/layout/bg-button.png");
text-shadow: 1px 1px 0px white;
-moz-box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.3);
-webkit-box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.3);
box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.3);
font-size: 14px;
}
#top .button_wrap .style_wrap {
display: block;
width: 100px;
height: 100px;
border-radius: 50%;
padding: 8px;
background: url("../images/layout/bg-style-wrap.png") repeat-x 0 0;
margin: 0 auto;
position: relative;
z-index: 2;
}
Regards,
Ismael