webextensions-examples/forget-it/options/options.css

body {
  width: 25em;
  font-family: "Open Sans Light", sans-serif;
  font-size: 0.9em;
  font-weight: 300;
}

section.clear-options {
  padding: 0.5em 0;
  margin: 1em 0;
}

#clear-button {
  margin: 0 1.3em 1em 0;
}

section.clear-options input,
section.clear-options>select,
#clear-button {
  float: right;
}

label {
  display: block;
  padding: 0.2em 0;
}

label:hover {
  background-color: #EAEFF2;
}

.title {
  font-size: 1.2em;
  margin-bottom: 0.5em;
}