demo.css

/* ---- Customizations to the color grid palettes (font and background color) ------------------------------------------------------ */
.ck.ck-color-ui-dropdown {
  --ck-color-grid-tile-size: 20px;
}
.ck.ck-color-ui-dropdown .ck-color-grid {
  grid-gap: 1px;
}
.ck.ck-color-ui-dropdown .ck-color-grid .ck-button {
  border-radius: 0;
}
.ck.ck-color-ui-dropdown .ck-color-grid__tile:hover:not(.ck-disabled),
.ck.ck-color-ui-dropdown .ck-color-grid__tile:focus:not(.ck-disabled) {
  z-index: 1;
  transform: scale(1.3);
}

/* ---- Basic CSS reset ------------------------------------------------------ */
*, ::after, ::before {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  margin: 0;
}

body,
html {
  margin: 0;
  padding: 0;
}

.ck.ck-content.ck-editor__editable_inline > :first-child {
  margin-top: 0;
}

/* ---- Styles of the demo page ------------------------------------------------------ */
.editor-wrapper {
  max-width: 66rem;
  margin: 0 auto 2rem auto;
}

.header-wrapper {
  padding: 1rem 2rem;
}

/* ---- Document editor demo styles ------------------------------------------------------------------- */
#cke5-productivity-pack-demo {
  position: relative;
  border: 1px solid var(--ck-color-base-border);
  border-radius: var(--ck-border-radius);
  /* Set vertical boundaries for the document editor. */
  max-height: 80vh;
  /* This element is a flex container for easier rendering. */
  display: flex;
  flex-flow: column nowrap;
}

.cke5-productivity-pack-demo__toolbar-container {
  /* Make sure the toolbar container is always above the editable. */
  z-index: 2;
  /* Create the illusion of the toolbar floating over the editable. */
  box-shadow: 0 2px 2px rgba(0, 0, 0, 0.08);
  /* Use the CKEditor CSS variables to keep the UI consistent. */
  border-bottom: 1px solid var(--ck-color-toolbar-border);
  position: sticky;
  top: var(--header-height);
}

/* Adjust the look of the toolbar inside of the container. */
.cke5-productivity-pack-demo__toolbar-container .ck-toolbar {
  border: 0;
  border-radius: 0;
}

/* Make the editable container look like the inside of a native word processor app. */
.cke5-productivity-pack-demo__content-container {
  padding: clamp(1rem, 0.85rem + 0.74vw, 1.5rem);
  background: var(--color-shark-4, #e3e8ed);
  /* Make it possible to scroll the "page" of the edited content. */
  overflow-y: scroll;
}

.cke5-productivity-pack-demo__content-container .cke5-productivity-pack-demo__content {
  /* Set the dimensions of the "page". */
  max-width: 21cm;
  width: 100%;
  min-height: 21cm;
  /* Keep the "page" off the boundaries of the container. */
  padding: 1.2cm 1cm;
  border-color: transparent;
  border-radius: var(--ck-border-radius);
  background: white;
  /* The "page" should cast a slight shadow (3D illusion). */
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.07);
  /* Center the "page". */
  margin: 0 auto;
}

.cke5-productivity-pack-demo__content-container .cke5-productivity-pack-demo__content.ck-focused {
  border: var(--ck-focus-ring);
}

@media screen and (max-width: 1100px) {
  .cke5-productivity-pack-demo__content-container .cke5-productivity-pack-demo__content {
    padding: 0.5cm;
  }
}
@media screen and (max-width: 1100px) {
  #cke5-productivity-pack-demo {
    grid-template-columns: 1fr;
  }
}
#cke5-productivity-pack-demo {
  display: grid;
  grid-template-columns: 1fr minmax(75%, 22cm);
  grid-template-rows: auto 1fr;
}

.cke5-productivity-pack-demo__toolbar-container .ck.ck-toolbar__items {
  border: 0;
}

.cke5-productivity-pack-demo__toolbar-container {
  grid-column: 1/3;
}

.cke5-productivity-pack-demo__content-container {
  grid-column: 2/3;
}

@media screen and (max-width: 1100px) {
  .cke5-productivity-pack-demo__content-container {
    grid-column: 1/3;
  }
  .cke5-productivity-pack-demo__outline {
    display: none;
  }
  .cke5-productivity-pack-demo__outline [class*=-toggle] {
    opacity: 0.5;
    padding: var(--ck-spacing-small);
  }
  .cke5-productivity-pack-demo__outline [class*=-toggle]:hover {
    opacity: 1;
  }
}
.cke5-productivity-pack-demo__outline {
  background: var(--color-shark-4, #e3e8ed);
  max-height: 80vh;
}

#cke5-productivity-pack-demo {
  --ck-document-outline-indent-level-2: 1.1em;
  --ck-document-outline-indent-level-3: 2.2em;
  --ck-document-outline-item-active-color: var(--color-tang-5, #743ccd);
}

#cke5-productivity-pack-demo .ck-document-outline__item {
  line-height: 1.1em;
  max-width: 27ch;
}

#cke5-productivity-pack-demo .ck-content .ck-widget.table-of-contents ol {
  margin-bottom: var(--ck-spacing-tiny);
}

@media screen and (min-width: 1100px) {
  #cke5-productivity-pack-demo.outline-collapsed {
    grid-template-columns: 35px minmax(22cm, 100%);
  }
  .cke5-productivity-pack-demo__wrappper.outline-collapsed .ck-document-outline {
    display: none;
  }
}
.cke5-productivity-pack-demo__wrappper {
  grid-template-columns: 1fr minmax(75%, 22cm);
}