.vdr {
  touch-action: none;
  position: absolute;
  box-sizing: border-box;
  border: 1px dashed #d6d6d6;
}
.handle {
  box-sizing: border-box;
  position: absolute;
  width: 8px;
  height: 8px;
  background: #ffffff;
  border: 1px solid #333;
  box-shadow: 0 0 2px #bbb;
}
.handle-tl {
  top: -5px;
  left: -5px;
  cursor: nw-resize;
}
.handle-tm {
  top: -5px;
  left: calc(50% - 4px);
  /*margin-left: -5px;*/
  cursor: n-resize;
}
.handle-tr {
  top: -5px;
  right: -5px;
  cursor: ne-resize;
}
.handle-ml {
  top: calc(50% - 4px);
  /*margin-top: -5px;*/
  left: -5px;
  cursor: w-resize;
}
.handle-mr {
  top: calc(50% - 4px);
  /*margin-top: -5px;*/
  right: -5px;
  cursor: e-resize;
}
.handle-bl {
  bottom: -5px;
  left: -5px;
  cursor: sw-resize;
}
.handle-bm {
  bottom: -5px;
  left: calc(50% - 4px);
  /*margin-left: -5px;*/
  cursor: s-resize;
}
.handle-br {
  bottom: -5px;
  right: -5px;
  cursor: se-resize;
}
/*旋转handle*/
/*.handle-rot {
  top: 0;
  left: 50%;
  margin-top: -20px;
  margin-left: -1px;
  border-radius: 50%;
  width: 10px;
  height: 10px;
  cursor: grab;
  transform: translate(-50%, 0);
}
.handle-rot:before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  width: 0;
  height: 7px;
  border-left: 1px solid #000000;
  transform: translate(-50%, 0);
}*/
.ref-line{
  position: absolute;
  background-color: rgb(255, 0, 204);
  z-index: 9999;
}
.v-line{
  width: 1px;
}
.h-line{
  height: 1px;
}
@media only screen and (max-width: 768px) {
  [class*="handle-"]:before {
    content: '';
    left: -10px;
    right: -10px;
    bottom: -10px;
    top: -10px;
    position: absolute;
  }
}