#voicemenu {
　width: 650px;
  height: 70px;
  margin-right: auto;
  margin-left: auto;
  background-image:url(../img/voice_header_off.jpg);
  background-position:0px 0px;
  background-repeat:no-repeat;
  }

#voicemenu ul{
  margin:0px 0px 0px 0px;
  padding:0px;
  list-style-type:none;
  }

#voicemenu li{
  width:181px;
  height:70px;
  margin:0px;
  padding:0px;
  text-indent:-1000px;
  float:left;
  overflow:hidden;
}

#voicemenu a{
  width:181px;
  height:70px;
  background-image : url(../img/voice_header_off.jpg);
  background-repeat:no-repeat;
  overflow:hidden;
  }


#voicemenu a:hover{
  background-image : url(../img/voice_header_on.jpg);
  background-repeat:no-repeat;
}


/*受講者の声*/

.voicesub a{
  display:block ;
  width:181px;
  height:70px;
  background-position:0px 0px;
  }


.voicesub a:hover {
  display:block ;
  width:181px;
  height:70px;
  background-position:0px 0px;
}


/*講師実績*/

.jissekisub a{
  display:block ;
  width:181px;
  height:70px;
  background-position:-181px 0px;
  }

.jissekisub a:hover{
  display:block ;
  width:181px;
  height:70px;
  background-position:-181px 0px;
}