Mailspring/packages/nylas-dashboard/public/css/app.css

body {
  background-image: -webkit-linear-gradient(top, rgba(232, 244, 250, 0.2), rgba(231, 231, 233, 1)), url(http://news.nationalgeographic.com/content/dam/news/2015/12/13/BookTalk%20K2/01BookTalkK2.jpg);
  background-size: cover;
  font-family: Roboto, sans-serif;
  font-size: 12px;
}

h2 {
  padding-top: 10px;
  text-align: center;
}

pre {
  margin: 0;
}

.account {
  display: inline-block;
  border-radius: 5px;
  width: 300px;
  background-color: rgba(255, 255, 255, 0.6);
  padding: 15px;
  margin: 5px;
  vertical-align: top;
}

.account h3 {
  font-size: 16px;
  margin: 0;
  padding: 0;
}

.account .section {
  font-size: 14px;
  padding: 10px 0;
  text-align: center;
}

.account.errored {
  background-image: linear-gradient(to bottom,#f2dede 0,#e7c3c3 100%);
  background-repeat: repeat-x;
  border-color: #dca7a7;
  border: 1px solid;
  color: #a94442;
  border-radius: 4px;
  background-color: #f2dede;
}

.account .error pre {
  text-overflow: ellipsis;
  width: inherit;
  overflow: hidden;
}