body{
  overscroll-behavior-y: contain;
}
.item{
    width:50px;
    height:50px;
    background-color:aquamarine;
    position:absolute;
  }

  .resizer{
    position:absolute;
    width:10px;
    height:5px;
    background-color:red;
    z-index:2;
  }
  .resizer.nw{
    top:-1px;
    left:-1px;
    cursor:nw-resize;
  }
  .resizer.ne{
     top:-1px;
    right:-1px;
    cursor:ne-resize;
  }
  .resizer.sw{
     bottom:-1px;
    left:-1px;
    cursor:sw-resize;
  }
  .resizer.se{
     bottom:-1px;
    right:-1px;
    cursor:se-resize;
  }