@kangc/v-md-editor/lib/plugins/todo-list/todo-list.css

A markdown editor built on Vue

.v-md-editor-preview li.v-md-editor__todo-list-item {
  margin-left: -20px;
  list-style: none;
}

.v-md-editor-preview .v-md-editor__todo-list-checkbox {
  position: relative;
  display: inline-block;
  width: 15px;
  height: 15px;
  margin-top: -3px;
  margin-right: 4px;
  vertical-align: middle;
  border-style: solid;
  border-width: 1px;
  border-radius: 2px;
}

.v-md-editor-preview .v-md-editor__todo-list-checkbox--checked::after {
  position: absolute;
  top: 2px;
  left: 5px;
  display: table;
  width: 3px;
  height: 7px;
  border: 2px solid #fff;
  border-top: 0;
  border-left: 0;
  -webkit-transform: rotate(45deg) scale(1);
  transform: rotate(45deg) scale(1);
  transition: all 0.2s ease-in-out;
  content: '';
}