panel-core.css

/*
YUI 3.5.1 (build 22)
Copyright 2012 Yahoo! Inc. All rights reserved.
Licensed under the BSD License.
http://yuilibrary.com/license/
*/
.yui3-panel {
    position: absolute;
}
.yui3-panel-hidden {
    visibility: hidden;
}
.yui3-widget-tmp-forcesize .yui3-panel-content {
    overflow: hidden !important;
}
.yui3-panel .yui3-widget-hd {
    position: relative;
}
.yui3-panel .yui3-widget-hd .yui3-widget-buttons {
    position: absolute;
    top: 0;
    right: 0;
}
.yui3-panel .yui3-widget-ft .yui3-widget-buttons {
    display: inline-block;
    *display: inline;
    zoom: 1;
}