message: Updated: css.
diff: .Jsonviewer {
  - & > &__item {
  - display: block;
  - }
  -
  &__item {
  padding-left: 20px;
  margin-top: 10px;
  user-select: none;
  + background: lightslategray;
  - &--collapsible {
  + &--colasable {
  position: relative;
  - display: inline;
  - overflow: hidden;
  - cursor: pointer;
  &::before {
  position: absolute;
  left: 5px;
  - color: black;
  + color: palevioletred;
  content: "+";
  }
  }
  &__objects {
  padding-left: 20px;
  margin-top: 10px;
  - user-select: none;
  + background: lightsteelblue;
  + &--colasable {
  &::before {
  position: absolute;
  - left: 5px;
  - color: black;
  + left: 26px;
  + color: olivedrab;
  content: "+";
  }
  }
  +
  + &--discolasable {
  + &::before {
  + position: absolute;
  + left: 26px;
  + color: red;
  + content: "+";
  + }
  + }
  + }
  }
  