div.novel {
  width: 100%;
  height: 100%;
  background-color: #FFFFFFBB;
  overflow: scroll;
  margin: auto;
}

.nobel_bn {
  text-align: center;
}

.footer{
  margin-top: 20px;
  text-align: center;
}

.menu_btn{
    border: 0px;
    width:190px;
    height:40px;
    background-size: 190px 40px;
}

.rubi{
          margin-bottom: 1px;
}

.rubimoto{
          margin-top: 1px;
}