gristlabs_grist-core/app/client/widgets/TextEditor.css

.cell_editor {
  position: absolute;
  z-index: 1000;        /* make it higher than popper's 999 */
}

.default_editor {
  box-shadow: 0 0 3px 2px var(--grist-color-cursor);
}

.readonly_editor {
  box-shadow: 0 0 3px 2px var(--grist-color-slate);
}

/* make room for lock icon */
.readonly_editor .celleditor_cursor_editor .celleditor_text_editor,
.readonly_editor .celleditor_cursor_editor .celleditor_content_measure {
  padding-left: 18px;
}

.readonly_editor::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  margin: 4px 3px 0 3px;
  width: 13px;
  height: 13px;
  background-color: #D0D0D0;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  -webkit-mask-size: contain;
  -webkit-mask-image: var(--icon-Lock);
}


.formula_editor {
  background-color: white;
  padding: 4px 0 2px 21px;
  z-index: 10;
}

/* styles specific to the formula editor in the side panel */
.default_editor.formula_editor_sidepane {
  border-radius: 3px;
}
.formula_editor_sidepane > .formula_editor {
  padding: 5px 0 5px 24px;
  border-radius: 3px;
}
.formula_editor_sidepane > .formula_field_edit::before, .formula_field_sidepane::before {
  left: 4px;
}

.celleditor_cursor_editor {
  background-color: white;

  /* the following are copied from .field_clip */
  padding: 3px 3px 0px 3px;
  font-family: var(--grist-font-family-data);
  font-size: var(--grist-medium-font-size);
  line-height: 18px;
  white-space: pre-wrap;
  overflow-wrap: break-word;
}

.celleditor_text_editor {
  display: block;
  outline: none;
  padding: 0px;
  border: none;
  resize: none;
  z-index: 10;
  color: black;

  /* Inherit styles, same as for .celleditor_content_measure, to ensure that sizes correspond. */
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

.celleditor_content_measure {
  position: absolute;
  left: 0;
  top: 0;
  border: none;
  visibility: hidden;
  overflow: visible;
  /* with 'pre-wrap', this lets the editor gets as wide as needed before wrapping; */
  /* width is limited only by max-width (which is set in JS code). */
  width: max-content;

  /* Inherit styles, same as for .celleditor_text_editor, to ensure that sizes correspond. */
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

.error_msg {
  color: black;
  cursor: default;
  margin: 4px;
}

.error_details {
  padding: 2px 2px 2px 2px;
  background-color: #F8ECEA;
  margin: 0 0 -2px 0;
}

.error_box {
  background-color: #ffb6c1;
  padding: 2px 0px 2px 0px;
  white-space: pre-wrap;
}

.kf_collapser {
  height: 1.2rem;
}