style.css

body {
  background-color: #fafafa;
  width: 900px;
  max-width: 90%;
  margin: 0 auto;
}

h1 {
  font-size: 40px;
}

body, input, button {
  font-size: 16px;
  font-family: monospace;
}

body, a, a:visited {
  color: #111;
}

p {
  margin: .5em 0;
}

h1, h2, .center {
  text-align: center;
}

h1 {
  margin: .2em 0;
}

form {
  display: flex;
}

.hidden {
  display: none;
}

#oauth {
  text-align: center;
  padding: 1em;
}

.text {
  margin: 1em 0;
  /*font-size: 60%;*/
}

#error span {
  background-color: rgba(255, 30, 30, 0.9);
  padding: 1em;
  border-radius: 5px;
  margin: 1em;
  display: block;
}

#image {
  width: 100%;
  height: 500px;
}

#image a {
  display: block;
  width: 100%;
  height: 100%;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

#title, #submit {
  padding: .3em .5em;
  margin-bottom: 1em;
  border-radius: 5px;
  border-style: solid;
  border-width: 2px;
  border-color: #999;
}

#title {
  width: 100%;
  background-color: white;
  margin-right: 1em;
  outline-color: #149ACC;
}

#submit {
  border-color: #ffbd00;
  background-color: white;
  cursor: pointer;
}

span.selected {
  padding: 2px 3px;
  margin-left: -2px;
  margin-right: -2px;
}

.selected,
#submit:hover {
  background-color: #ffbd00;
}

#title::selection {
  background-color: #ffbd00;
}

#title::::-moz-selection {
  background-color: #ffbd00;
}

#examples li {
  margin-bottom: 0.5em;
}