.flex,
.flex-row,
.flex-column,
.flex-center-xy,
.flex-center-between,
.flex-top-between {
  display: flex;
}
.flex-row {
  flex-direction: row;
}
.flex-column {
  flex-direction: column;
}
.flex-left {
  justify-content: flex-start;
}
.flex-center,
.flex-center-xy {
  justify-content: center;
}
.flex-right {
  justify-content: flex-end;
}
.flex-space-between,
.flex-center-between,
.flex-top-between {
  justify-content: space-between;
}
.flex-space-around {
  justify-content: space-around;
}
.flex-top,
.flex-top-between {
  align-items: flex-start;
}
.flex-middle,
.flex-center-xy,
.flex-center-between {
  align-items: center;
}
.flex-bottom {
  align-items: flex-end;
}
.flex-stretch {
  align-items: stretch;
}
.flex-nowrap {
  flex-wrap: nowrap;
}
.flex-wrap {
  flex-wrap: wrap;
}
.flex-full {
  flex: 1;
}
.triangle-top {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-bottom: 5px solid #999;
}
.triangle-bottom {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid #999;
}
.arrow-bottom {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border: 0 solid #cecece;
  border-width: 2px 2px 0 0;
  border-radius: 1px;
  transform: translate(5px, -2px) rotate(135deg);
}
.arrow-top {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border: 0 solid #cecece;
  border-width: 2px 2px 0 0;
  border-radius: 1px;
  transform: translate(5px, 0) rotate(-45deg);
}
.arrow-select {
  border-color: #0188ff;
}
.side-vertical {
  display: inline-block;
  position: absolute;
  left: 0;
  width: 4px;
  height: 18px;
  background: #0188ff;
  border-radius: 0 4px 4px 0;
}
.rich-editor {
  background: #fff;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
}
.ql-container {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  font-size: 16px;
  line-height: 1.5;
  overflow: auto;
  padding: 10px 10px 20px 10px;
  border: 1px solid #ececec;
}
.toolbar {
  box-sizing: border-box;
  padding: 0 6px;
  height: 50px;
  width: 100%;
  position: fixed;
  left: 0;
  right: 100%;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-left: none;
  border-right: none;
  background: #f6f6f6;
}
.icon-group {
  position: relative;
  width: 100%;
}
.edit-icon {
  width: 22px;
  height: 22px;
  margin: 6px;
}
.draw-panel {
  position: absolute;
  top: -60px;
  left: 6px;
  padding: 8px 10px;
  background: #f6f6f6;
  border-radius: 4px;
}
.draw-panel__show {
  opacity: 1;
  transition: opacity 0.25s ease-in;
}
.draw-panel__hide {
  opacity: 0;
  transition: opacity 0.2s ease-out;
}
.panel-body {
  position: relative;
}
.panel-triangle {
  position: absolute;
  bottom: -13px;
  left: 32px;
  border-top: 5px solid #f6f6f6;
}
.panel-item {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  margin-right: 10px;
}
.panel-item:last-child {
  margin-right: 0;
}
.editor-check {
  width: 16px;
  height: 16px;
}
.editor-check__show {
  opacity: 1;
}
.editor-check__hide {
  opacity: 0;
}