body {
  background-color: #ffffff;
  background-image: url('https://i.imgur.com/Mgn5Lwo.jpeg');
  background-size: auto;
  background-position: left top;
  background-repeat: repeat;
  color: #b3b8c3;
  font-family: Arial, sans-serif;
  padding: 20px;
}

h1, h2, #post, form {
  font-size: 14px !important;
  width: 555px;
  background-color: #ffffff;
  color: #4e5053;
  border: solid 2px #4e5053;
  margin-left: auto;
  margin-right: auto;
  padding: 1em;
}