@media (max-width: 800px) {
    .node-type-slideshow .twocol-with-top .panel-col-top .views-slideshow-controls-bottom .views-slideshow-controls-text .views-slideshow-controls-text-previous, 
    .node-type-slideshow .twocol-with-top .panel-col-top .views-slideshow-controls-bottom .views-slideshow-controls-text .views-slideshow-controls-text-next {
        -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=60)";
        filter: alpha(opacity=60);
        -moz-opacity: 0.6;
        opacity: 0.6;
    }
    .node-type-slideshow .twocol-with-top .panel-col-top .views-slideshow-controls-bottom .views-slideshow-controls-text .views-slideshow-controls-text-previous {
        margin-left: -5px;
    }
    .node-type-slideshow .twocol-with-top .panel-col-top .views-slideshow-controls-bottom .views-slideshow-controls-text .views-slideshow-controls-text-next {
        margin-right: -5px;
    }
}
@media (max-width: 680px) {
    .node-type-slideshow .twocol-with-top .panel-col-top .views-slideshow-controls-bottom .views-slideshow-controls-text .views-slideshow-controls-text-previous, 
    .node-type-slideshow .twocol-with-top .panel-col-top .views-slideshow-controls-bottom .views-slideshow-controls-text .views-slideshow-controls-text-next {
        width: 40px;
        height: 40px;
        line-height: 40px;
    }
}
@media (max-width: 400px) {
    .node-type-slideshow .twocol-with-top .panel-col-top .views-slideshow-controls-bottom .views-slideshow-controls-text .views-slideshow-controls-text-previous, 
    .node-type-slideshow .twocol-with-top .panel-col-top .views-slideshow-controls-bottom .views-slideshow-controls-text .views-slideshow-controls-text-next {
        width: 35px;
        height: 35px;
        line-height: 35px;
    }
}