table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}
th,
td {
  padding: 8px;
  text-align: left;
  border: 1px solid #ddd;
}
th {
  background-color: #f2f2f2;
}

button {
  padding: 15px 30px;
  background-color: rgba(0, 0, 255, 0.607);
  color: white;
  font-size: 16px;
  font-weight: bold;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

div {
  margin-top: 20px;
  margin-bottom: 20px;
}

#loading {
  margin-left: auto;
  margin-right: auto;
  margin-top: 30px;
  margin-bottom: 30px;
  text-align: center;
}