function validate() {
  var name_input = document.getElementById("name");
  var email_input = document.getElementById("email");
  var content_input = document.getElementById("content");
  
  var valid = true;
  
  if (name_input.value === null || name_input.value === "") {
    valid = false;
    name_input.style.background = "#FA8072";
  } else {
    name_input.style.background = "#FFFFFF";
  }
  
  if (email_input.value === null || email_input.value === "") {
    valid = false;
    email_input.style.background = "#FA8072";
  } else {
    email_input.style.background = "#FFFFFF";
  }
  
  if (content_input.value === null || content_input.value === "") {
    valid = false;
    content_input.style.background = "#FA8072";
  } else {
    content_input.style.background = "#FFFFFF";
  }
  
  if (valid) {
    return true;
  }
  return false;
}