styles.css

@font-face {
  font-family: "Fira Sans";
  src: local("Fira Sans Regular"),
    local("FiraSans-Regular"),
    url("fonts/FiraSans-Regular.subset.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
}

@font-face {
  font-family: "Fira Sans";
  src: local("Fira Sans Bold"),
    local("FiraSans-Bold"),
    url("fonts/FiraSans-Bold.subset.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
}

@font-face {
  font-family: "Fira Mono";
  src: local("Fira Mono Regular"),
    local("FiraMono-Regular"),
    url("fonts/FiraMono-Regular.subset.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
}

@font-face {
  font-family: "Fira Mono";
  src: local("Fira Mono Bold"),
    local("FiraMono-Bold"),
    url("fonts/FiraMono-Bold.subset.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
}

:root {
  font: 12px/1.5 Fira Sans, Helvetica, Arial, sans-serif;
  color: #222;
}

body {
  font-size: 2.25rem;
  margin: 1.5em 3em;
}

h1, h2, h3 {
  line-height: 1.2;
  margin: 0;
}

h1 {
  font-size: 8rem;
}

h2 {
  font-size: 4.2rem;
}

h3 {
  font-size: 2.5rem;
}

strong.extra {
  font-size: 4rem;
}

a {
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  padding: 0 0.1em;
  border-radius: .5rem;
  font-family: Fira Mono;
  background-color: #f5f5f5;
}

.unresolved {
  font-weight: bold;
  color: red;
}

.not-stabilized {
  font-weight: bold;
  color: darkred;
}

.diff {
  color: rgb(183, 13, 244);
}

.soon {
  color: rgb(30, 50, 255);
}

.progress {
  color: rgb(30, 120, 220);
}

.working {
  color: rgb(30, 180, 180);
}

.closer {
  color: rgb(30, 200, 110);
}

.almost {
  color: rgb(30, 200, 60);
}

.flat {
  color: rgb(29, 220, 10);
}

.soon, .progress, .working, .closer, .almost, .flat, .diff {
  font-weight: bold;
}

.differences {
  font-size: 16px;
  margin-bottom: .5em;
}

.differences > summary {
  cursor: pointer;
}

.label {
  background-color: #f7e101;
  border-radius: 2px;
  font-size: 12px;
  height: 20px;
  line-height: 20px;
  display: inline-block;
  padding: .15em 4px;
  box-shadow: inset 0 -1px 0 rgba(27,31,35,.12);
  vertical-align: top;
}

.deps {
  font-size: 1.5rem;
  margin-bottom: .5em;
}

.closed {
  text-decoration: line-through;
}

footer {
  font-size: 60%;
  color: #ccc;
}

.github-ribbon {
  position: absolute;
  top: 0;
  right: 0;
  border: 0;
  color: transparent;
  width: 130px;
  height: 130px;
  overflow: hidden;
  border-bottom-left-radius: 100%;
  border-radius: 0 65% 0 100%;
}

.github-ribbon::before {
  content: "Fork me on GitHub";
  position: absolute;
  top: 0;
  right: 0;
  text-align: center;
  width: 200px;
  height: 28px;
  font-size: 14px;
  line-height: 28px;
  color: white;
  transform-origin: 100% 0;
  transform: translate(27px, 115px) rotate(45deg);
  background-image: linear-gradient(
    to bottom,
    black 0, black 1px,
    white 1px, white 2px,
    black 2px, black 26px,
    white 26px, white 27px,
    black
  );
}