form {
  font-family: Arial, Helvetica, sans-serif;
}
label, input[type=text], textarea {
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  width: 100%;
}
input[type=text], textarea {
  align-items: center;
  justify-content: center;
  padding: 10px;
  border: 1px solid #CCC;
  border-radius: 3px;
  box-sizing: border-box;
  width: 30%;
  margin: 0 auto;
  resize: vertical;
}

input[type=submit] {
  background-color: #4CAF50;
  color: #FFF;
  padding: 12px 24px;
  border: none;
  border-radius: 30px;
  cursor: pointer;
  display: block;
    margin: 0 auto;
}

input[type=submit]:hover {
  background-color: #45a049;
}