.custom.css

¾¾.monospace {
  font: 11px/1.3 Monaco !important;
  }

/* slightly larger indentation of source code */
.outline-disclosure ol {
  -webkit-padding-start: 18px !important;
  }

/* margin underneath styles panel heading */
.pane.expanded:nth-child(2) > .title {
  margin: 0 0 5px;
  }

/* lighter and less cramped seperators in styles panel */
.styles-sidebar-separator {
  background: -webkit-linear-gradient(#fff, #eee) !important;
  border-top: 1px solid #e9e9e9 !important;
  border-bottom: 1px solid #ccc !important;
  padding: 3px 5px !important;
  margin: 5px 0;
  }
  /* the element from which is inherited */
  .styles-sidebar-separator .node-link {
    text-decoration: none !important;
    }

/* no more border between selectors */
.styles-section:not(.first-styles-section) {
  border-top: 0 !important;
  margin: 0 0 5px;
  }

/* reference links to stylesheets */
.styles-section .header .subtitle a {
  color: #00e !important;
  text-decoration: none;
  }
  .styles-section .header .subtitle a:hover {
    text-decoration: underline;
    }

/* slightly larger indentation for properties */
.styles-section .properties {
  padding-left: 20px !important;
  }
  /* put checkboxes on the left of properties */
  .styles-section .properties .enabled-button {
    position: absolute !important;
    left: 7px;
    margin: 2px 0 0 0 !important;
    }

/* indent the closing curly brace */
.styles-section > div:last-of-type {
  margin: 0 0 0 30px;
  }
.styles-section:hover .properties .enabled-button {
    visibility: visible !important;
}

.styles-section .properties li.disabled .enabled-button {
    visibility: visible !important;
}

.styles-section .properties .enabled-button {
    margin: 0 4px 0 0 !important;
    display: block !important;
    float: left !important;
    visibility: hidden !important;
}