html,body {
    /*position: fixed;*/
    overflow: hidden;
    font-family:'Times New Roman', Times, serif;
    margin: 0px;
    height: 100%;
    width: 100%;
}


div#container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-flow: column;
}

table{
    width: 350px;
    /*border: 1px solid red;*/
}

.tabletitle{
    height: 20px;
}

td{
    /*border: 1px solid blue;*/
    height: 60px;
    vertical-align: middle;
}

.arrow {
    border: solid black;
    width: 15px;
    height: 15px;
    border-width: 0 6px 6px 0;
    display: inline-block;
    padding: 6px;
    pointer-events: none;
  }

.up {
    transform: translateY(9px) rotate(-135deg);
    -webkit-transform: translateY(9px) rotate(-135deg);
}

.down {
    transform: translateY(-9px) rotate(45deg);
    -webkit-transform: translateY(-9px) rotate(45deg);
}

.line {
    border: solid black;
    width: 25px;
    height: 25px;
    border-width: 0 0px 6px 0;
    display: inline-block;
    padding: 6px;
    transform: translateY(6px);
    -webkit-transform: translateY(-17px);
    pointer-events: none;
}

td{
    text-align: center;
}

button.controlbutton{
    width:100px; 
    height:50px; 
    font-size: 16px;
}

div#btncol1{
    flex: 0 0 auto;
    height: 228px;
    /*height:165px;*/
    /*background-color: rgb(196, 192, 184)*/
    background-color: #69838f;
    transition: all 0.5s ease;
    overflow: hidden;
}

#grid {
    display: grid;
    height: 100px;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: 100px;
  }
  
  #CH1 {
    background-color: lime;
  }
  
  #CH2 {
    background-color: yellow;
    grid-column: 1/3;
  }
  
  #CH3 {
    background-color: blue;
    grid-column: span 1/3;
  }