body {
  background-color: #f3f3f3;
  font-family: arial;
  text-align: center;

  background-image: url('images/body-background.png');
  background-repeat: repeat-y; /* repeats vertically */
  background-position: top center;
  background-size: 100% auto; 
}

.article-container {
  width: 900px;
  background-color: #fff;
  padding: 30px;
  margin: 0 auto;
}

.article-box {
  padding-bottom: 30px;
  width: 100%;
}

input {
  padding: 0px 20px;
  width: 300px;
  height: 40px;
  font-size: 22px;
}

button {
  width: 100px;
  height: 44px;
  font-size: 22px;
}

footer {
  width: 900px;
  background-color: #fff;
  padding: 30px;
  margin: 0 auto;
  text-align: center;
}

h1 {
  width: 900px;
  background-color: #fff;
  padding: 30px;
  margin: 0 auto;
  text-align: center;
}

h2 {
  width: 900px;
  background-color: #fff;
  padding: 30px;
  margin: 0 auto;
  text-align: center;
}

h4 {
  padding-top: 20px;
}