#sidebar {
    background: white;
    width: 900px;
    height: 100%;
    top: 0;
    right: -900px;
    position: fixed;
    z-index: 100;
    border: solid;
    border-color: gray;
    box-shadow:  5px 5px 10px black, 0 0 15px gray;
    overflow-y: auto;
  }

  .sidebar{
    position:relative;
    width: 50%;
    float:left; 
    padding:10px;
    /* 배경색 및 밑선
    background-color:#F4F6FF;
    border-bottom: solid;
    border-color: #CED4DA;
    */
    z-index: 2;
  }
  /*
  #sidebar > button {
    background:white;
    position: absolute;
    top: 0px;
    right: 910px;
    width: 70px;
    height: 45px;
    color: rgb(128, 128, 128);
    border : solid;
  }*/
  #graph1{
    height:25%;
    z-index: 3;
  }