table, th, td {
    border: 1px dot black;
    text-align: center;
    border-collapse: collapse;
    padding: 4px;
  }
  tr:nth-child(odd) {
    background-color: #D6EEEE;
  }
  tr:nth-child(even) {
    background-color:rgb(218, 224, 129);
  }
  h1, h5 {text-align: center;}
  div { 
    display: block;
    text-align: center;
  }
  table.center {
    margin-left: auto; 
    margin-right: auto;
  }
  p.d_border {
      border-style: dotted;
      border-color: red;
      border-radius: 25px;
      text-align: center;
      padding: 4px; 
  }
  .make_sticky_top{
      position: -webkit-sticky; /* Safari */
      position: sticky;
      top: 0;
  }

  .stick_bottom {
      position: fixed;
      bottom: 0;
      display: block;
      text-align: center;
      width: 100%;
      z-index: -1;
  }

  body {
      background-color:rgb(218, 224, 129);
  }