sample.css

/*
 * Your Stylesheet
 *
 * This stylesheet is loaded when Atom starts up and is reloaded automatically
 * when it is changed and saved.
 *
 * Add your own CSS or Less to fully customize Atom.
 * If you are unfamiliar with Less, you can read more about it here:
 * http://lesscss.org
 */
/*
 * Examples
 * (To see them, uncomment and save)
 */
h1 {
  font-size: 1.3em;
}
h2 {
  font-size: 1.2em;
}
h3 {
  font-size: 1.1em;
}
h4 {
  font-size: 1.1em;
}
h5 {
  font-size: 1em;
}
h6 {
  font-size: 1em;
}
table {
  font-size: 1em;
  padding: 0;
}