body {
  font-family: Arial, sans-serif;
  padding: 20px;
}

.controls {
  margin-bottom: 20px;
}

button, select {
  margin-left: 10px;
  padding: 5px 10px;
}

table {
  border-collapse: collapse;
  margin-top: 20px;
  width: 100%;
}

th, td {
  border: 1px solid #aaa;
  text-align: center;
  padding: 8px;
}

th {
  background-color: #f0f0f0;
}

.course {
  background-color: #d9ecff;
  border-radius: 6px;
  padding: 6px;
  font-size: 13px;
}

.course-name {
  font-weight: bold;
}

.course-teacher {
  color: #333;
  font-size: 12px;
}

/*
.course {
  background-color: #d9ecff;
  border-radius: 4px;
  padding: 4px;
}
*/