upgrade-notification.html

<style>
    /* CSS reset. Borrowed from Vimium: https://github.com/philc/vimium/blob/5bd32a511da813d731f73c4d646c14a69c2515ff/content_scripts/vimium.css */
  .markdown-here-reset,
  a.markdown-here-reset,
  a:visited.markdown-here-reset,
  a:hover.markdown-here-reset,
  a:link.markdown-here-reset {
    background: none;
    border: none;
    bottom: auto;
    box-shadow: none;
    color: black;
    cursor: auto;
    display: inline;
    float: none;
    font-family : "Helvetica Neue", "Helvetica", "Arial", sans-serif;
    font-size: inherit;
    font-style: normal;
    font-variant: normal;
    font-weight: normal;
    height: auto;
    left: auto;
    letter-spacing: 0;
    line-height: 100%;
    margin: 0;
    max-height: none;
    max-width: none;
    min-height: 0;
    min-width: 0;
    opacity: 1;
    padding: 0;
    position: static;
    right: auto;
    text-align: left;
    text-decoration: none;
    text-indent: 0;
    text-shadow: none;
    text-transform: none;
    top: auto;
    vertical-align: baseline;
    white-space: normal;
    width: auto;
    z-index: 99999999;
  }

  #markdown-here-upgrade-notification-content,
  #markdown-here-upgrade-notification-link {
    font-family: Tahoma, Helvetica, arial, freesans, clean, sans-serif;
    font-size: 16px;
    color: #3E055F;
  }

  #markdown-here-upgrade-notification-content {
    position: fixed;
    display: block;
    bottom: 0;
    right: 20px;
    padding: 4px;
    background-color: #DFCCEA;
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
    box-shadow: 0 -1px 10px 2px #510E79;
    opacity: 0.95;
    transition: opacity 1000ms;
  }

  #markdown-here-upgrade-notification-link {
    display: block;
    padding: 5px;
  }

  #markdown-here-upgrade-notification-link:hover {
    text-decoration: underline;
    cursor: pointer;
  }

  #markdown-here-upgrade-notification-close {
    position: absolute;
    top: 1px;
    right: 2px;
  }

  #markdown-here-upgrade-notification-close:hover {
    cursor: pointer;
  }

  #markdown-here-upgrade-notification-logo {
    vertical-align: bottom;
  }
</style>
<div id="markdown-here-upgrade-notification-content" class="markdown-here-reset">
  <a id="markdown-here-upgrade-notification-link" class="markdown-here-reset" target="_blank" href="{{optionsURL}}" title="{{upgrade_notification_changes_tooltip}}">
    <img id="markdown-here-upgrade-notification-logo" class="markdown-here-reset" style="width:16px" src="data:image/png;base64,{{logoBase64}}"/>
    {{upgrade_notification_text}}
  </a>
  <a id="markdown-here-upgrade-notification-close" class="markdown-here-reset" href="#" title="{{upgrade_notification_dismiss_tooltip}}">&#215;</a>
</div>