emoji-picker-js/css/emoji-picker.css

@keyframes show {
  0% {
    opacity: 0;
    transform: scale3d(0.8, 0.8, 0.8);
  }

  50% {
    transform: scale3d(1.05, 1.05, 1.05);
  }

  100% {
    transform: scale3d(1, 1, 1);
  }
}

@keyframes hide {
  0% {
    opacity: 1;
    transform: scale3d(1, 1, 1);
  }

  100% {
    opacity: 0;
    transform: scale3d(0.8, 0.8, 0.8);
  }
}

@keyframes grow {
  0% {
    opacity: 0;
    transform: scale3d(0.8, 0.8, 0.8); 
  }

  100% { 
    opacity: 1;
    transform: scale3d(1, 1, 1); 
  }
}

@keyframes shrink {
  0% { 
    opacity: 1;
    transform: scale3d(1, 1, 1);
  }

  100% { 
    opacity: 0;
    transform: scale3d(0.8, 0.8, 0.8); 
  }
}

@keyframes fade-in {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes fade-out {
  0% { opacity: 1; }
  100% { opacity: 0; }
}

.emoji-picker {
  --animation-duration: 0.2s;
  --animation-easing: ease-in-out;

  --emoji-size: 1.8em;
  --emoji-size-multiplier: 1.5;
  --emoji-preview-size: 2em;
  --emoji-per-row: 8;
  --row-count: 6;

  --content-height: calc((var(--emoji-size) * var(--emoji-size-multiplier)) * var(--row-count) + var(--category-name-size) + var(--category-button-height) + 0.5em);

  --category-name-size: 0.85em;

  --category-button-height: 2em;
  --category-button-size: 1.1em;
  --category-border-bottom-size: 4px;

  --focus-indicator-color: #999999;

  --search-height: 2em;

  --blue-color: #4F81E5;

  --border-color: #CCCCCC;
  --background-color: #FFFFFF;
  --text-color: #000000;
  --secondary-text-color: #666666;
  --hover-color: #E8F4F9;
  --search-focus-border-color: var(--blue-color);
  --search-icon-color: #CCCCCC;
  --overlay-background-color: rgba(0, 0, 0, 0.8);
  --popup-background-color: #FFFFFF;
  --category-button-color: #666666;
  --category-button-active-color: var(--blue-color);

  --dark-border-color: #666666;
  --dark-background-color: #333333;
  --dark-text-color: #FFFFFF;
  --dark-secondary-text-color: #999999;
  --dark-hover-color: #666666;
  --dark-search-background-color: #666666;
  --dark-search-border-color: #999999;
  --dark-search-placeholder-color: #999999;
  --dark-search-focus-border-color: #DBE5F9;
  --dark-popup-background-color: #333333;
  --dark-category-button-color: #FFFFFF;
}

.emoji-picker__wrapper {
  outline: 0;
  border-radius: 5px;
}

.emoji-picker {
  font-size: 16px;

  border: 1px solid var(--border-color);
  border-radius: 5px;
  background: var(--background-color);
  width: calc(var(--emoji-per-row) * var(--emoji-size) * var(--emoji-size-multiplier) + 1em + 1.5rem);
  font-family: Arial, Helvetica, sans-serif;
  overflow: hidden;
  animation: show var(--animation-duration) var(--animation-easing);
}

.emoji-picker h2 {
  font-family: Arial, Helvetica, sans-serif;
}

.emoji-picker__overlay {
  background: rgba(0, 0, 0, 0.75);
  z-index: 1000;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.emoji-picker.hiding {
  animation: hide var(--animation-duration) var(--animation-easing);
}

.emoji-picker.dark {
  background: var(--dark-background-color);
  color: var(--dark-text-color);
  border-color: var(--dark-border-color);
}

.emoji-picker__content {
  padding: 0.5em;
  height: var(--content-height);
  position: relative;
}

.emoji-picker__preview {
  height: var(--emoji-preview-size);
  padding: 0.5em;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: row;
  align-items: center;
}

.emoji-picker.dark .emoji-picker__preview {
  border-top-color: var(--dark-border-color);
}

.emoji-picker__preview-emoji {
  font-size: var(--emoji-preview-size);
  margin-right: 0.25em;
  font-family: "Segoe UI Emoji", "Segoe UI Symbol", "Segoe UI", "Apple Color Emoji", "Twemoji Mozilla", "Noto Color Emoji", "EmojiOne Color", "Android Emoji";
}

.emoji-picker__preview-emoji img.emoji {
  height: 1em;
  width: 1em;
  margin: 0 .05em 0 .1em;
  vertical-align: -0.1em;
}

.emoji-picker__preview-name {
  color: var(--text-color);
  font-size: 0.85em;
  overflow-wrap: break-word;
  word-break: break-all;
}

.emoji-picker.dark .emoji-picker__preview-name {
  color: var(--dark-text-color);
}

.emoji-picker__container {
  display: grid;
  justify-content: center;
  grid-template-columns: repeat(var(--emoji-per-row), calc(var(--emoji-size) * var(--emoji-size-multiplier)));
  grid-auto-rows: calc(var(--emoji-size) * var(--emoji-size-multiplier));
}

.emoji-picker__container.search-results {
  height: var(--content-height);
  overflow-y: auto;
}

.emoji-picker__custom-emoji {
  width: 1em;
  height: 1em;
}

.emoji-picker__emoji {
  background: transparent;
  border: none;
  cursor: pointer;
  overflow: hidden;
  font-size: var(--emoji-size);
  width: 1.5em;
  height: 1.5em;
  padding: 0;
  margin: 0;
  outline: none;
  font-family: "Segoe UI Emoji", "Segoe UI Symbol", "Segoe UI", "Apple Color Emoji", "Twemoji Mozilla", "Noto Color Emoji", "EmojiOne Color", "Android Emoji";
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.emoji-picker__emoji img.emoji {
  height: 1em;
  width: 1em;
  margin: 0 .05em 0 .1em;
  vertical-align: -0.1em;
}

.emoji-picker__emoji:focus, .emoji-picker__emoji:hover {
  background: var(--hover-color);
}

.emoji-picker__emoji:focus {
  outline: 1px dotted var(--focus-indicator-color);
}

.emoji-picker.dark .emoji-picker__emoji:focus, .emoji-picker.dark .emoji-picker__emoji:hover {
  background: var(--dark-hover-color);
}

.emoji-picker__plugin-container {
  margin: 0.5em;
  display: flex;
  flex-direction: row;
}

.emoji-picker__search-container {
  margin: 0.5em;
  position: relative;
  height: var(--search-height);
  display: flex;
}

.emoji-picker__search {
  box-sizing: border-box;
  width: 100%;
  border-radius: 3px;
  border: 1px solid var(--border-color);
  padding-right: 2em;
  padding: 0.5em 2.25em 0.5em 0.5em;
  font-size: 0.85em;
  outline: none;
}

.emoji-picker.dark .emoji-picker__search {
  background: var(--dark-search-background-color);
  color: var(--dark-text-color);
  border-color: var(--dark-search-border-color);
}

.emoji-picker.dark .emoji-picker__search::placeholder {
  color: var(--dark-search-placeholder-color);
}

.emoji-picker__search:focus {
  border: 1px solid var(--search-focus-border-color);
}

.emoji-picker.dark .emoji-picker__search:focus {
  border-color: var(--dark-search-focus-border-color);
}

.emoji-picker__search-icon {
  position: absolute;
  color: var(--search-icon-color);
  width: 1em;
  height: 1em;
  right: 0.75em;
  top: calc(50% - 0.5em);
}

.emoji-picker__search-icon img {
  width: 1em;
  height: 1em;
}

.emoji-picker__search-not-found {
  color: var(--secondary-text-color);
  text-align: center;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.emoji-picker__search-not-found h2 {
  color: var(--secondary-text-color);
}

.emoji-picker.dark .emoji-picker__search-not-found {
  color: var(--dark-secondary-text-color);
}

.emoji-picker.dark .emoji-picker__search-not-found h2 {
  color: var(--dark-secondary-text-color);
}

.emoji-picker__search-not-found-icon {
  font-size: 3em;
}

.emoji-picker__search-not-found-icon img {
  width: 1em;
  height: 1em;
}

.emoji-picker__search-not-found h2 {
  margin: 0.5em 0;
  font-size: 1em;
}

.emoji-picker__variant-overlay {
  background: var(--overlay-background-color);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 5px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  animation: fade-in var(--animation-duration) var(--animation-easing);
}

.emoji-picker__variant-overlay.hiding {
  animation: fade-out var(--animation-duration) var(--animation-easing);
}

.emoji-picker__variant-popup {
  background: var(--popup-background-color);
  margin: 0.5em;
  padding: 0.5em;
  text-align: center;
  border-radius: 5px;
  animation: grow var(--animation-duration) var(--animation-easing);
  user-select: none;
}

.emoji-picker__variant-overlay.hiding .emoji-picker__variant-popup {
  animation: shrink var(--animation-duration) var(--animation-easing);
}

.emoji-picker.dark .emoji-picker__variant-popup {
  background: var(--dark-popup-background-color);
}

.emoji-picker__emojis {
  overflow-y: auto;
  position: relative;
  height: calc((var(--emoji-size) * var(--emoji-size-multiplier)) * var(--row-count) + var(--category-name-size));
}

.emoji-picker__emojis.hiding {
  animation: fade-out 0.05s var(--animation-easing);
}

.emoji-picker__emojis h2.emoji-picker__category-name {
  font-size: 0.85em;
  color: var(--secondary-text-color);
  text-transform: uppercase;
  margin: 0.25em 0;
  text-align: left;
}

.emoji-picker.dark h2.emoji-picker__category-name {
  color: var(--dark-secondary-text-color);
}

.emoji-picker__category-buttons {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  height: var(--category-button-height);
  margin-bottom: 0.5em;
}

button.emoji-picker__category-button {
  flex-grow: 1;
  background: transparent;
  padding: 0;
  border: none;
  cursor: pointer;
  font-size: var(--category-button-size);
  vertical-align: middle;
  color: var(--category-button-color);
  border-bottom: var(--category-border-bottom-size) solid transparent;
  outline: none;
}

button.emoji-picker__category-button img {
  width: var(--category-button-size);
  height: var(--category-button-size);
}

.emoji-picker.keyboard button.emoji-picker__category-button:focus {
  outline: 1px dotted var(--focus-indicator-color);
}

.emoji-picker.dark button.emoji-picker__category-button.active {
  color: var(--category-button-active-color);
}

.emoji-picker.dark button.emoji-picker__category-button {
  color: var(--dark-category-button-color);
}

button.emoji-picker__category-button.active {
  color: var(--category-button-active-color);
  border-bottom: var(--category-border-bottom-size) solid var(--category-button-active-color);
}

@media (prefers-color-scheme: dark) {
  .emoji-picker.auto {
    background: var(--dark-background-color);
    color: var(--dark-text-color);
    border-color: var(--dark-border-color);
  }

  .emoji-picker.auto .emoji-picker__preview {
    border-top-color: var(--dark-border-color);
  }

  .emoji-picker.auto .emoji-picker__preview-name {
    color: var(--dark-text-color);
  }

  .emoji-picker.auto button.emoji-picker__category-button {
    color: var(--dark-category-button-color);
  }

  .emoji-picker.auto button.emoji-picker__category-button.active {
    color: var(--category-button-active-color);
  }

  .emoji-picker.auto .emoji-picker__emoji:focus, .emoji-picker.auto .emoji-picker__emoji:hover {
    background: var(--dark-hover-color);
  }

  .emoji-picker.auto .emoji-picker__search {
    background: var(--dark-search-background-color);
    color: var(--dark-text-color);
    border-color: var(--dark-search-border-color);
  }
 
  .emoji-picker.auto h2.emoji-picker__category-name {
    color: var(--dark-secondary-text-color);
  }

  .emoji-picker.auto .emoji-picker__search::placeholder {
    color: var(--dark-search-placeholder-color);
  }

  .emoji-picker.auto .emoji-picker__search:focus {
    border-color: var(--dark-search-focus-border-color);
  }

  .emoji-picker.auto .emoji-picker__search-not-found {
    color: var(--dark-secondary-text-color);
  }

  .emoji-picker.auto .emoji-picker__search-not-found h2 {
    color: var(--dark-secondary-text-color);
  }

  .emoji-picker.auto .emoji-picker__variant-popup {
    background: var(--dark-popup-background-color);
  }
}