body {
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f4f4;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
h3 {
  font-size: 28px;
  margin-bottom: 10px;
}
.class {
  background: white;
  padding: 15px;
  border-radius: 10px;
  width: 350px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  margin-bottom: 20px;
}
h4, h1 {
  margin: 10px 0;
  color: #333;
}
.add,
.search {
  width: 250px;
  padding: 10px;
  margin: 10px 0;
  border-radius: 6px;
  border: 1px solid #aaa;
  outline: none;
  font-size: 16px;
}

.add:focus,
.search:focus {
  border-color: #007bff;
}
button {
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  background: green;
  color: white;
  margin-left: 45px;
}
label{
    font-family:Arial, Helvetica, sans-serif;
    font-size: x-large;
    font-style: italic;
}

/* li{
    margin-bottom: 5px;
} */