table {
  font-family: arial, sans-serif;

  width: 100%;
}
td, th {
  border: 2px solid #000000;
  text-align: left;
  padding: 8px;
}

.myDiv {
  border: 5px outset red;
  background-color: lightblue;
  text-align: left;
}

.topnav {
  margin-bottom: 20px;  /* Adjust the value to your desired space */
}