style.css

/* Style inputs with type="text", type="email"and textareas */
input[type=text], input[type=email], textarea {
  width: 100%; /* Full width */
  padding: 12px; /* Some padding */ 
  border: 1px solid #ccc; /* Gray border */
  border-radius: 4px; /* Rounded borders */
  box-sizing: border-box; /* Make sure that padding and width stays in place */
  margin-top: 6px; /* Add a top margin */
  margin-bottom: 16px; /* Bottom margin */
  resize: vertical /* Allow the user to vertically resize the textarea (not horizontally) */
}

/* Style the submit button with a specific background color etc */
button[type=submit] {
  background-color: #04AA6D;
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

/* When moving the mouse over the submit button, add a darker green color */
button[type=submit]:hover {
  background-color: #45a049;
}