{
  display: inline-block;
  position: relative;
  width: 150px;
  height: 200px;
}

.indicator {
  position: absolute;
  background-color: red;
  left: 0;
  top: 100px;
  height: 50px;
  width: 50px;
}

.relative {
  position: relative;
  top: 50px;
  background-color: green;
}

.absolute {
  position: absolute;
  top: 50px;
  background-color: green;
}
</style>

<div class="group">
  <div>
    <div class="indicator"></div>
    <table>
      <thead class="relative">
        <tr><td><div class="absolute"></