JSFiddle - React, Tailwind, and code Playground

HTML

<div>
  <nav>
    Nav
  </nav>
  <div class="middle">
  middle
  </div>
  <div class="content">
    <div class="left">
      <div>AAA</div>
    </div>
    <div class="right">
      <div class="table">
        <div class="header">
          <div class="head sticty">B1</div>
          <div class="head head2 sticty">B2</div>
          <div class="head">B3</div>
          <div class="head">B4</div>
          <div class="head">B5</div>
          <div class="head">B6</div>
          <div class="head">B7</div>
          <div class="head">B8</div>
          <div class="head">B9</div>
          <div class="head">B10</div>
          <div class="head">B11</div>
        </div>
        <div class="body">
        <div class="row">
            <div class="col sticty">1: Content1</div>
            <div class="col sticty">1: Content2</div>
            <div class="col">1: Content3</div>
            <div class="col">1: Content4</div>
            <div class="col">1: Content5</div>
            <div class="col">1: Content6</div>
            <div class="col">1: Content7</div>
            <div class="col">1: Content8</div>
            <div class="col">1: Content9</div>
            <div class="col">1: Content10</div>
            <div class="col">1: Content11</div>
          </div>
          <div class="row">
            <div class="col sticty">Content1</div>
            <div class="col col2 sticty">Content2</div>
            <div class="col">Content3</div>
            <div class="col">Content4</div>
            <div class="col">Content5</div>
            <div class="col">Content6</div>
            <div class="col">Content7</div>
            <div class="col">Content8</div>
            <div class="col">Content9</div>
            <div class="col">Content10</div>
            <div class="col">Content11</div>
          </div>
          <div class="row">
            <div class="col sticty">Content1</div>
            <div class="col col2 sticty">Content2</div>
            <div...

SCSS

body {
  margin: 0;
  overflow-x: hidden;
}
nav {
  color: white;
  background: blue;
  height: 30px;
  padding: 6px;
  position: sticky;
  top: 0;
  z-index: 4;
}

.content {
  display: flex;
  flex-direction: row;
  position: sticky;
  left: 0;
  top: 0;
  
  .left {
    color: white;
    background: green;
    height: 1000px;
    text-align: center;
    min-width: 100px;
    margin: 0 auto;
    vertical-align: middle;
    line-height: 1000px;
  }
  
  .right {
    color: white;
    background: red;
    text-align: center;
    overflow: scroll;
    position: relative;
    
    .table {
        .header {
           position: absolute;
           min-width: 100vw;
           background: purple;
           display: flex;
           z-index: 3;
        }
    
        .body {
          border: 1px solid black;

          .row {
            display: flex;
          }
        }
        
       .head, .col {
          border: 1px solid black;
          min-width: 110px;
          position: relative;
       }
       
      .sticty {
        position: sticky;
        left: 0;
        z-index: 2;
      }
      
      .head {
        background: purple;
        left: 0;
      }
      
      .col {
        background: red;
        left: 0;
      }
      
      .head2, .col2 {
        left: 110px;
      }
    }
  }
}