calendar-base-core.css

/*
YUI 3.7.2 (build 5639)
Copyright 2012 Yahoo! Inc. All rights reserved.
Licensed under the BSD License.
http://yuilibrary.com/license/
*/
.yui3-calendar {
}

.yui3-calendar-content {
}

.yui3-calendar-pane {
   width: 100%;
}

.yui3-calendar-grid {
   width: 100%;
}

.yui3-calendar-column-hidden, .yui3-calendar-hidden {
  display:none;
}

.yui3-calendar-day {
  
}