essentials.admin.css

.ckeditor5-toolbar-button-divider {
  background-image: url(../icons/divider.svg);
}

.ckeditor5-toolbar-button-wrapping {
  background-image: url(../icons/separator.svg);
}

.ckeditor5-toolbar-button-undo {
  background-image: url(../icons/undo.svg);
}

.ckeditor5-toolbar-button-redo {
  background-image: url(../icons/redo.svg);
}

.ckeditor5-toolbar-button-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100px;
  color: #000;
}

.ckeditor5-toolbar-button-heading::before {
  margin-left: 10px;
  /* For browsers which don't support alt content, eg FireFox */
  content: "Heading";
  content: "Heading" / "";
  font-size: 14px;
}

[dir="rtl"] .ckeditor5-toolbar-button-heading::before {
  margin-right: 10px;
  margin-left: 0;
}

.ckeditor5-toolbar-button-heading::after {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 10px;
  content: "";
  transform: rotate(135deg);
  border-width: 2px 2px 0 0;
  border-style: solid;
}

[dir="rtl"] .ckeditor5-toolbar-button-heading::after {
  margin-right: 0;
  margin-left: 10px;
}

File

View on git.drupalcode.org

core/modules/ckeditor5/css/essentials.admin.css

View source 
  1. .ckeditor5-toolbar-button-divider {

  2.   background-image: url(../icons/divider.svg);

  3. }

  4. 

  5. .ckeditor5-toolbar-button-wrapping {

  6.   background-image: url(../icons/separator.svg);

  7. }

  8. 

  9. .ckeditor5-toolbar-button-undo {

  10.   background-image: url(../icons/undo.svg);

  11. }

  12. 

  13. .ckeditor5-toolbar-button-redo {

  14.   background-image: url(../icons/redo.svg);

  15. }

  16. 

  17. .ckeditor5-toolbar-button-heading {

  18.   display: flex;

  19.   align-items: center;

  20.   justify-content: space-between;

  21.   width: 100px;

  22.   color: #000;

  23. }

  24. 

  25. .ckeditor5-toolbar-button-heading::before {

  26.   margin-left: 10px;

  27.   /* For browsers which don't support alt content, eg FireFox */

  28.   content: "Heading";

  29.   content: "Heading" / "";

  30.   font-size: 14px;

  31. }

  32. 

  33. [dir="rtl"] .ckeditor5-toolbar-button-heading::before {

  34.   margin-right: 10px;

  35.   margin-left: 0;

  36. }

  37. 

  38. .ckeditor5-toolbar-button-heading::after {

  39.   display: inline-block;

  40.   width: 7px;

  41.   height: 7px;

  42.   margin-right: 10px;

  43.   content: "";

  44.   transform: rotate(135deg);

  45.   border-width: 2px 2px 0 0;

  46.   border-style: solid;

  47. }

  48. 

  49. [dir="rtl"] .ckeditor5-toolbar-button-heading::after {

  50.   margin-right: 0;

  51.   margin-left: 10px;

  52. }

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