.button {
  background-color: #4CAF50; /* Green */
  border: none;
  color: white;
  padding: 16px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 18px;
  margin: 4px 2px;
  transition-duration: 0.4s;
  cursor: pointer;
  width: 500px;
}

.buttonsmall {
  background-color: #4CAF50; /* Green */
  border: none;
  color: white;
  /*padding: 16px 32px;*/
  text-align: center;
  vertical-align: middle;
  text-decoration: none;
  display: inline-block;
  font-size: 18px;
  margin: 4px 2px;
  transition-duration: 0.4s;
  cursor: pointer;
  width: 150px;
  height: 150px;
}

a:link {
  text-decoration: none;
  color: white;
}
a:visited {
  text-decoration: none;
  color: white;
}
a:hover {
  text-decoration: none;
  color: white;
}
a:active {
  text-decoration: none;
  color: white;
}

.button1:hover {
  background-color: #7777aa;
  color: white;
  border: 2px solid #7777aa;
}

.button1 {
  background-color: #aaaadd;
  color: black;
  border: 2px solid #7777aa;
}

@media only screen and (max-device-width: 600px) {
  h1 { font-size: 4em; }
  img { width: 100%; }
  .button { width: 100%; padding: 20px 40px; }
  .button1 { color: black; font-size: 2.5em; }
}