ui/webui/resources/cr_elements/shared_style_css.html

<link rel="import" href="chrome://resources/html/polymer.html">

<!-- Common styles for Material Design WebUI. Included directly in
  settings_shared_css.html. -->
<dom-module id="cr-shared-style">
  <template>
    <style>
      .action-button {
        background: var(--google-blue-500);
        color: white;
        --paper-button-flat-keyboard-focus: {
          background-color: rgb(58, 117, 215);  /* 88% of --google-blue-500 */
        };
      }

      .action-button[disabled] {
        opacity: .25;  /* TODO(dbeam): check this value with bettes. */
      }

      .cancel-button {
        --paper-button-flat-keyboard-focus: {
          background-color: rgba(0, 0, 0, .12);
        };
      }

      .action-button,
      .cancel-button {
        font-weight: 500;
      }
    </style>
  </template>
</dom-module>