#overlay {
  position: fixed;
  display: none;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0,0,0,0.6);
  z-index: 2;
}

#text{
  position: absolute;
  top: 50%;
  left: 50%;
  font-size: 30px;
  color: white;
  transform: translate(-50%,-50%);
  -ms-transform: translate(-50%,-50%);
}
#nameoptions{
    position: absolute;
    top: 50%;
    left: 50%;
    font-size: 20px;
    color: white;
    transform: translate(-50%,-50%);
    -ms-transform: translate(-50%,-50%);
  }

  #tabspc{
    position: absolute;
    width:60%;
    height:100%;
    top: 50%;
    left: 50%;
    font-size: 30px;
    color: black;
    background-color: white;
    transform: translate(-50%,-50%);
    -ms-transform: translate(-50%,-50%);
    padding: 5%;
    overflow: auto;
  }

  #calholder{
    height:80%;
    width:100%;
    max-height:80%;
    float: left;
    background-color: pink;
    overflow: auto;
  }

  #butholder{
    height:20%;
    width:100%;
    float: left;
    background-color: green;
  }

 .caltabdiv{
    overflow-y:scroll;
  }