body {
  font-family: sans-serif;
}

form {
  margin: 20px;
  width: 400px;
  background-color: rgb(38, 229, 229);
}

fieldset {
  border-radius: 5px;
}

.container {
  margin-left: 10px;
}

.form-name,
.form-age,
.form-tel,
.form-email,
.form-message,
.form-button {
  display: block;
  border: 1px solid black;
  border-radius: 5px;
  height: 20px;
  padding: 3px 8px;
}

.form-name {
  margin-bottom: 10px;
  width: 300px;
}

.form-age {
  margin-bottom: 10px;
  width: 300px;
}

.form-tel {
  margin-bottom: 10px;
  width: 300px;
}

.form-email {
  margin-bottom: 10px;
  width: 300px;
}

.form-message {
  margin-bottom: 10px;
  min-height: 30px;
  max-height: 200px;
  width: 300px;
  resize: vertical;
}

.form-checkbox {
  margin-bottom: 10px;
  cursor: pointer;
}

.name,
.age,
.tel,
.email,
.message {
  display: inline-block;
  margin-bottom: 5px;
}

.form-button {
  cursor: pointer;
  background-color: rgb(148, 202, 148);
}