Updated emojione-picker css for spritesheet, dark background, position:fixed search form, and cursor:pointer on clickable things

picker.css

.emoji-dialog {
  position:relative;
  width: 276px;
  height: 264px;
  background-color: #555;
  box-sizing: border-box;
  border-radius: 2px;
  overflow: hidden;
  position: relative;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.1), 0 2px 15px rgba(0,0,0,0.1);
}

.emoji-dialog .emoji-dialog-header {
  box-sizing: border-box;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  padding: 0;
  background-color:#eee;
}

.emoji-dialog .emoji-dialog-header ul {
  padding: 0;
  margin: 0;
  list-style: none;
  background-color: #bbb;
}

.emoji-dialog .emoji-dialog-header li {
  display: inline-block;
  box-sizing: border-box;
  width: 34px;
  height: 34px;
  padding: 3px 4px 0;
  border-radius-top-left:5px;
  cursor:pointer;
}

.emoji-dialog .emoji-dialog-header div{
  outline:none;
}

.emoji-dialog .emoji-dialog-header span {
  width: 26px;
  height: 26px;
  top:0;
  margin:0;
  -webkit-filter: grayscale(100%);
  filter: grayscale(100%);
}

.emoji-dialog .emoji-dialog-header li.active {
  background-color: #eee;
}
.emoji-dialog .emoji-dialog-header li:hover {
  background-color: #ddd;
}

div.emoji-dialog div.emoji-grandlist {
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 5px 10px;
  box-sizing: border-box;
  width: 100%;
  height: calc(100% - 72px);
  overflow-x: hidden;
  overflow-y: auto;
}

.emoji-dialog .emoji-category-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.emoji-dialog .emoji-category-list li {
  display: inline-block;
  box-sizing: border-box;
  width: 32px;
  height: 32px;
  padding: 3px;
  border-radius: 4px;
}

.emoji-dialog .emoji-category-header {
  margin-top: 4px;
  margin-bottom: 4px;
  font-size: 14px;
  font-family: sans-serif;
  font-weight: normal;
  color: #bbb;
  padding: 0 4px;
}

.emoji-dialog .modifiers {
  list-style: none;
  padding: 0;
  margin: 0;
  position: absolute;
  top: 44px;
  right: 5px;
}

.emoji-dialog.with-search .modifiers {
  top: 52px;
}

.emoji-dialog .modifiers li {
  display: inline-block;
  padding: 1px 2px;
  width:20px;
  height:20px;
  cursor:pointer;
}
.emoji-dialog .modifiers li:hover {
  background-color:transparent;
}

.emoji-dialog .modifiers .modifier {
  display: inline-block;
  border-radius: 10px;
  width: 15px;
  height: 15px;
  position: relative;
}

.emoji-dialog .modifiers .modifier.active::after {
  content: "";
  display: block;
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 10px;
  border: 1px solid #555;
  top: 1px;
  left: 1px;
  transform: scale(1.5);
}

.emoji-dialog .modifiers li:hover {
  transition-duration: 200ms;
  transform: scale(1.2);
}

.emoji-dialog .emoji-search-wrapper {
  position:relative;
  margin-top:3px;
  width:140px;
  padding: 0 5px;
}

.emoji-dialog .emoji-search {
  font-size: 14px;
  padding: 5px 4px;
  width: 100%;
  border: 1px solid #ddd;
  border-radius: 4px;
  outline:0;
  background-color:#fff;
  color:#222;
}

.emoji-dialog .emoji-category-list li {
  border-radius:6px;
  overflow:visible;
  color:#555;
  cursor:pointer;
}
.emoji-dialog .emoji-category-list li:hover {
  background: #fff;
  color:#fff;
}

.emoji-dialog .emoji-category-list .emoji{
  outline:none;
}

.emoji-dialog .emoji-category-list .emoji span {
  width: 26px;
  height: 26px;
  font-size:26px;
  top:0;
  margin:0;
}