extension/css/whats-new.css
:root {
  position: fixed;
  min-height: unset !important;
}

.container {
  min-width: 200px !important;
  max-width: 480px !important;
}

p {
  font-size: medium;
}

.link {
  color: #0a65db !important;
  font-weight: 500;
}

.link:hover {
  text-decoration: underline;
}

h2 {
  margin-top: 0px;
}

p:last-child {
  margin-bottom: 0px;
}

.close-button {
  position: fixed;
  top: 0;
  right: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 0 0 0 8px;
  padding: 8px;
  background: #fff;
  color: rgb(95, 99, 104);
  cursor: pointer;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1);
  transition: all 150ms ease-in-out;
}

.close-button:hover {
  background-color: #f5f5f5;
}

.close-button:active {
  background-color: #e5e5e5;
}

body.dark {
  background-color: #202124;
  color: rgb(232, 234, 237);
}

body.dark .close-button {
  background-color: #2f3136;
  color: rgb(232, 234, 237);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1);
}

body.dark .close-button:hover {
  background-color: rgba(255, 255, 255, 0.12);
}

body.dark .close-button:active {
  background-color: rgba(255, 255, 255, 0.24);
}

body.dark .cr-button:focus-visible {
  box-shadow: 0 0 0 2px #ffffff;
}

body.dark .link {
  color: #4a96f9 !important;
}

/* only dark when prefer dark and body has dark class */
@media (prefers-color-scheme: dark) {
  body {
    background-color: #f8f9fa;
    color: #202124;
  }

  body.auto {
    background-color: #202124 !important;
    color: rgb(232, 234, 237) !important;
  }

  body.auto .close-button {
    background-color: #2f3136;
    color: rgb(232, 234, 237);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1);
  }

  body.auto .close-button:hover {
    background-color: rgba(255, 255, 255, 0.12);
  }

  body.auto .close-button:active {
    background-color: rgba(255, 255, 255, 0.24);
  }

  body.auto .cr-button:focus-visible {
    box-shadow: 0 0 0 2px #ffffff;
  }

  body.auto .link {
    color: #4a96f9 !important;
  }
}