table {
    border-collapse: collapse;
  }
  table.center {
  margin-left: auto;
  margin-right: auto;
  }
  td {
  padding: 5px;
  text-align: left;
  vertical-align: center;
  border-radius: 10px;
  }
  th {
  background-color: #588A87;
  color: white;
  text-align: right;
  padding: 5px;
  vertical-align: center;
  }
  tr:nth-child(even) {background-color: #D5E5D5;} 
  tr:nth-child(odd) {background-color: #EEF1DA;} 
  
  input[type=number] {
  border: 1px solid;
  padding: 5px 5px;
  border-radius: 4px;
  }
  input[type=number]:focus {
  background-color: #efeeb2
  }
  input,output{display: inline-block;
    vertical-align: middle;
  }