greenlock.html/styles/main.css

.column-row {
  display: flex;
  flex-direction: column;
  text-align: center;
  align-items: center;
}

body {
  position: relative;
  margin-top: 5.777777778em;
  min-height: 36em;
  font-size: 18px;
  font-family: 'Source Sans Pro', sans-serif;
  font-stretch: normal;
  line-height: 1.33;
  letter-spacing:  -0.4px;
  color: #1a1a1a;
  opacity: 0;
}

h1 {
  font-size: 2.666666667em;
  max-width: 8em;
  text-align: center;
}

input {
  font-size: 1em;
  padding: 0.444444444em;
  border: solid #d9d9d9 1px;
  border-radius: 2px;
  font-family: inherit;
}

button {
  padding: 0.444444444em 1.2em;
  font-size: 1em;
  background-color: #5bc17f;
  border: solid 1px #5bc17f;
  border-radius: 2px;
  font-weight: normal;
  font-stretch: normal;
  letter-spacing: -0.4px;
  font-family: inherit;
  text-align: center;
  color: white;
  height: 40px;
  line-height: 1.13;
}

.acme-advanced-fields {
  position: absolute;
  bottom: 0;
  padding: 1em;
  text-align: center;
}

.domain-subtext {
  font-size: 0.833333333em;
  color: #666;
  text-align: center;
  margin: 0.5em;
}

input#acme-domains:before {
  content: "Secure | https://";
}

.domain-psuedo-input {
  display: inline-block;
  margin-right: .6666667em;
  border: solid #d9d9d9 1px;
  border-radius: 2px;
  padding: 0.44444444em;
  color: #d9d9d9;
}

input#acme-domains {
  border: none;
  padding: 0;
  padding-right: 0;
  width: 17.2222222em;
  color: #222;
}

input#acme-domains:focus {
  outline: none;
}

span.secure-green {
  color: #5bc17f;
}

.why-you-need {
  width: 26.555556em;
}

body.js-app-ready {
  transition: opacity 0.2s;
  opacity: 1;
}

.acme-advanced-fields > * {
  margin: 0 0.5em;
}

.js-javascript-warning {
  border: solid 1px red;
  background-color: #ffc0cb40;
  border-radius: 2px;
  margin: 0.6em;
  padding: 0.5em 1em;
  width: 30em;
 }