.yui3-skin-night .yui3-calendarnav-prevmonth, .yui3-skin-night .yui3-calendarnav-nextmonth {
  width: 0;
  height: 0;
  padding: 0;
  margin: 0;
  border: 10px solid transparent;
  position: absolute;
  /* ie6 height fix */
  font-size: 0;
  line-height: 0;
  /* ie6 transparent fix */
  _border-left-color: black;
  _border-top-color: black;
  _border-right-color: black;
  _border-bottom-color: black;
  _filter: chroma(color=black);
}

.yui3-skin-night .yui3-calendarnav-prevmonth:hover, .yui3-skin-night .yui3-calendarnav-nextmonth:hover {
  color: #0066CC;
}

.yui3-skin-night .yui3-calendarnav-month-disabled, .yui3-skin-night .yui3-calendarnav-month-disabled:hover {
  cursor: default;
  color: #CCCCCC;
}

.yui3-skin-night .yui3-calendarnav-prevmonth, .yui3-skin-night .yui3-calendarnav-prevmonth:hover {
  border-right-color: #FFFFFF;
  left: 0;
  margin-left: -10px;
}

.yui3-skin-night .yui3-calendarnav-nextmonth, .yui3-skin-night .yui3-calendarnav-nextmonth:hover {
  border-left-color: #FFFFFF;
  right: 0;
  margin-right: -10px;
}