bb-plane-fork/packages/editor/src/styles/editor.css

.ProseMirror {
  position: relative;
  word-wrap: break-word;
  white-space: pre-wrap;
  -moz-tab-size: 4;
  tab-size: 4;
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
  outline: none !important;
  cursor: text;
  font-family: var(--font-style);
  font-size: var(--font-size-regular);
  font-weight: 400;
  color: inherit;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  appearance: textfield;
  -webkit-appearance: textfield;
  -moz-appearance: textfield;
}

/* Placeholder only for the first line in an empty editor. */
.ProseMirror p.is-editor-empty:first-child::before {
  content: attr(data-placeholder);
  float: left;
  color: var(--color-placeholder);
  pointer-events: none;
  height: 0;
}

/* Display Placeholders on every new line. */
.ProseMirror p.is-empty::before {
  content: attr(data-placeholder);
  float: left;
  color: var(--color-placeholder);
  pointer-events: none;
  height: 0;
}

.ProseMirror li blockquote {
  margin-top: 10px;
  padding-inline-start: 1em;
}

/* block quotes */
.ProseMirror blockquote {
  font-style: normal;
  font-weight: 400;
  border-left: 3px solid rgb(var(--color-border-300));
}

.ProseMirror blockquote p::before,
.ProseMirror blockquote p::after {
  display: none;
}
/* end block quotes */

.ProseMirror code::before,
.ProseMirror code::after {
  display: none;
}

/* Custom image styles */
.ProseMirror img {
  margin-top: 0 !important;
  margin-bottom: 0;

  &:not(.read-only-image):not(.loading-image) {
    transition: filter 0.1s ease-in-out;

    &:hover {
      cursor: pointer;
      filter: brightness(90%);
    }

    &.ProseMirror-selectednode {
      outline: 3px solid rgba(var(--color-primary-100));
      filter: brightness(90%);
    }
  }
}

/* Custom gap cursor styles  */
.ProseMirror-gapcursor::after {
  border-top: 1px solid rgb(var(--color-text-100)) !important;
}

/* to-do list */
ul[data-type="taskList"] li {
  font-size: var(--font-size-list);
  line-height: 1.5;
}

ul[data-type="taskList"] li > label {
  position: absolute;
  left: -5px;
  margin: 0.1rem 0.15rem 0 0;
  user-select: none;
}

ul[data-type="taskList"] li > div {
  margin-left: 1.15rem;
}

ul[data-type="taskList"] li > label input[type="checkbox"] {
  border: 1px solid rgba(var(--color-text-100), 0.2) !important;
  outline: none;
  border-radius: 2px;
  transform: scale(1.05);
}

.ProseMirror[contenteditable="true"] input[type="checkbox"]:hover {
  background-color: rgba(var(--color-text-100), 0.1);
}

.ProseMirror[contenteditable="false"] input[type="checkbox"] {
  pointer-events: none;
}

ul[data-type="taskList"] li > label input[type="checkbox"]:checked {
  background-color: rgba(var(--color-primary-100)) !important;
  border-color: rgba(var(--color-primary-100)) !important;
  color: white !important;
}

ul[data-type="taskList"] li > label input[type="checkbox"]:checked:hover {
  background-color: rgba(var(--color-primary-300)) !important;
  border-color: rgba(var(--color-primary-300)) !important;
}

@media screen and (max-width: 768px) {
  ul[data-type="taskList"] li > label {
    margin-right: 0.5rem;
  }
}

/* the p tag just after the ul tag */
ul[data-type="taskList"] + p.editor-paragraph-block {
  margin-top: 0.4rem !important;
}

ul[data-type="taskList"] li > label input[type="checkbox"] {
  position: relative;
  -webkit-appearance: none;
  appearance: none;
  background-color: transparent;
  margin: 0;
  cursor: pointer;
  width: 0.8rem;
  height: 0.8rem;
  position: relative;
  border: 1.5px solid rgb(var(--color-text-100));
  margin-right: 0.2rem;
  margin-top: 0.15rem;

  &:active {
    background-color: rgb(var(--color-background-90));
  }

  /* check sign */
  &::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0.5em;
    height: 0.5em;
    transform: scale(0);
    transform-origin: center;
    transition: 120ms transform ease-in-out;
    box-shadow: inset 1em 1em;
    clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
  }

  &:checked::before {
    transform: scale(1) translate(-50%, -50%);
  }
}

ul[data-type="taskList"] li > div {
  & > p.editor-paragraph-block {
    margin-top: 10px;
    transition: color 0.2s ease;
  }

  [data-text-color] {
    transition: opacity 0.2s ease;
  }
}

ul[data-type="taskList"] li[data-checked="true"] {
  & > div > p.editor-paragraph-block {
    color: var(--color-placeholder);
  }

  [data-text-color] {
    opacity: 0.6;
    transition: opacity 0.2s ease;
  }
}
/* end to-do list */

/* Overwrite tippy-box original max-width */

.tippy-box {
  max-width: 600px !important;
}

.fade-in {
  opacity: 1;
  transition: opacity 0.3s ease-in;
}

.fade-out {
  opacity: 0;
  transition: opacity 0.2s ease-out;
}

@keyframes spinning {
  to {
    transform: rotate(360deg);
  }
}

.resize-cursor {
  cursor: ew-resize;
  cursor: col-resize;
}

.ProseMirror table * .is-empty::before {
  opacity: 0;
}

/* code block, inline code */
.ProseMirror pre {
  font-family: JetBrainsMono, monospace;
  tab-size: 2;
}

.ProseMirror pre code {
  background: none;
  color: inherit;
  padding: 0;
}

.ProseMirror code {
  font-size: var(--font-size-code);
}
/* end code block, inline code */

div[data-type="horizontalRule"] {
  line-height: 0;
  padding: var(--divider-padding-top) 0 var(--divider-padding-bottom) 0;
  margin-top: 0;
  margin-bottom: 0;

  & > div {
    border-bottom: 2px solid rgb(var(--color-border-200));
  }
}

/* Cursor styles for the inline code blocks */
@keyframes blink {
  49% {
    border-color: unset;
  }

  50% {
    border-color: transparent;
  }

  99% {
    border-color: transparent;
  }
}

.no-cursor {
  caret-color: transparent;
}

div:focus .fake-cursor,
span:focus .fake-cursor {
  margin-right: -1px;
  border-left-width: 1.5px;
  border-left-style: solid;
  animation: blink 1s;
  animation-iteration-count: infinite;
  position: relative;
  z-index: 1;
}

/* numbered, bulleted and to-do lists spacing */
.prose ol:where(.prose > :first-child):not(:where([class~="not-prose"], [class~="not-prose"] *)),
.prose
  ul:not([data-type="taskList"]):where(.prose > :first-child):not(:where([class~="not-prose"], [class~="not-prose"] *)),
.prose ul[data-type="taskList"]:where(.prose > :first-child) {
  margin-top: 0.25rem !important;
  margin-bottom: 1px !important;
}

.prose ol:not(:where(.prose > :first-child):not(:where([class~="not-prose"], [class~="not-prose"] *))),
.prose
  ul:not([data-type="taskList"]):not(
    :where(.prose > :first-child):not(:where([class~="not-prose"], [class~="not-prose"] *))
  ),
.prose ul[data-type="taskList"]:not(:where(.prose > :first-child)) {
  margin-top: calc(0.25rem + 3px) !important;
  margin-bottom: 1px !important;
}

ol ol,
ol ul:not([data-type="taskList"]),
ul:not([data-type="taskList"]) ul:not([data-type="taskList"]),
ul:not([data-type="taskList"]) ol {
  margin-top: 0.45rem !important;
}

ul[data-type="taskList"] ul[data-type="taskList"] {
  margin-top: 0.6rem;
}
/* end numbered, bulleted and to-do lists spacing */

h1.editor-heading-block,
h2.editor-heading-block,
h3.editor-heading-block,
h4.editor-heading-block,
h5.editor-heading-block,
h6.editor-heading-block,
p.editor-paragraph-block {
  margin: 0 !important;
}

/* tailwind typography */
.prose :where(h1.editor-heading-block):not(:where([class~="not-prose"], [class~="not-prose"] *)) {
  &:not(:first-child) {
    padding-top: var(--heading-1-padding-top);
  }

  padding-bottom: var(--heading-1-padding-bottom);
  font-size: var(--font-size-h1);
  line-height: var(--line-height-h1);
  font-weight: 600;
}

.prose :where(h2.editor-heading-block):not(:where([class~="not-prose"], [class~="not-prose"] *)) {
  &:not(:first-child) {
    padding-top: var(--heading-2-padding-top);
  }

  padding-bottom: var(--heading-2-padding-bottom);
  font-size: var(--font-size-h2);
  line-height: var(--line-height-h2);
  font-weight: 600;
}

.prose :where(h3.editor-heading-block):not(:where([class~="not-prose"], [class~="not-prose"] *)) {
  &:not(:first-child) {
    padding-top: var(--heading-3-padding-top);
  }

  padding-bottom: var(--heading-3-padding-bottom);
  font-size: var(--font-size-h3);
  line-height: var(--line-height-h3);
  font-weight: 600;
}

.prose :where(h4.editor-heading-block):not(:where([class~="not-prose"], [class~="not-prose"] *)) {
  &:not(:first-child) {
    padding-top: var(--heading-4-padding-top);
  }

  padding-bottom: var(--heading-4-padding-bottom);
  font-size: var(--font-size-h4);
  line-height: var(--line-height-h4);
  font-weight: 600;
}

.prose :where(h5.editor-heading-block):not(:where([class~="not-prose"], [class~="not-prose"] *)) {
  &:not(:first-child) {
    padding-top: var(--heading-5-padding-top);
  }

  padding-bottom: var(--heading-5-padding-bottom);
  font-size: var(--font-size-h5);
  line-height: var(--line-height-h5);
  font-weight: 600;
}

.prose :where(h6.editor-heading-block):not(:where([class~="not-prose"], [class~="not-prose"] *)) {
  &:not(:first-child) {
    padding-top: var(--heading-6-padding-top);
  }

  padding-bottom: var(--heading-6-padding-bottom);
  font-size: var(--font-size-h6);
  line-height: var(--line-height-h6);
  font-weight: 600;
}

.prose :where(p.editor-paragraph-block):not(:where([class~="not-prose"], [class~="not-prose"] *)) {
  &:first-child {
    padding-top: 0;
  }

  &:not(:first-child) {
    padding-top: var(--paragraph-padding-top);
  }

  &:not(td p.editor-paragraph-block, th p.editor-paragraph-block) {
    &:last-child {
      padding-bottom: var(--paragraph-padding-bottom);
    }

    &:not(:last-child) {
      padding-bottom: var(--paragraph-padding-between);
    }
  }

  font-size: var(--font-size-regular);
  line-height: var(--line-height-regular);
}

p.editor-paragraph-block + p.editor-paragraph-block {
  padding-top: var(--paragraph-padding-between) !important;
}

.prose :where(ol):not(:where([class~="not-prose"], [class~="not-prose"] *)) li p.editor-paragraph-block,
.prose :where(ul):not(:where([class~="not-prose"], [class~="not-prose"] *)) li p.editor-paragraph-block {
  font-size: var(--font-size-list);
  line-height: var(--line-height-list);
}

.prose :where(.prose > :first-child):not(:where([class~="not-prose"], [class~="not-prose"] *)) {
  margin-top: 0;
}
/* end tailwind typography */

/* text colors */
[data-text-color="gray"] {
  color: var(--editor-colors-gray-text);
}
[data-text-color="peach"] {
  color: var(--editor-colors-peach-text);
}
[data-text-color="pink"] {
  color: var(--editor-colors-pink-text);
}
[data-text-color="orange"] {
  color: var(--editor-colors-orange-text);
}
[data-text-color="green"] {
  color: var(--editor-colors-green-text);
}
[data-text-color="light-blue"] {
  color: var(--editor-colors-light-blue-text);
}
[data-text-color="dark-blue"] {
  color: var(--editor-colors-dark-blue-text);
}
[data-text-color="purple"] {
  color: var(--editor-colors-purple-text);
}
/* end text colors */

/* background colors */
[data-background-color="gray"] {
  background-color: var(--editor-colors-gray-background);
}
[data-background-color="peach"] {
  background-color: var(--editor-colors-peach-background);
}
[data-background-color="pink"] {
  background-color: var(--editor-colors-pink-background);
}
[data-background-color="orange"] {
  background-color: var(--editor-colors-orange-background);
}
[data-background-color="green"] {
  background-color: var(--editor-colors-green-background);
}
[data-background-color="light-blue"] {
  background-color: var(--editor-colors-light-blue-background);
}
[data-background-color="dark-blue"] {
  background-color: var(--editor-colors-dark-blue-background);
}
[data-background-color="purple"] {
  background-color: var(--editor-colors-purple-background);
}
/* end background colors */

/* emoji styles */
span[data-name][data-type="emoji"] img {
  display: inline !important;
  vertical-align: middle;
  margin: 0;
  padding: 0;
  max-width: 1.25em;
  max-height: 1.25em;
}

/* touch device styles */
.touch-select-none {
  user-select: none;
  -webkit-user-select: none;
}