JSFiddle - React, Tailwind, and code Playground

HTML

<div id="main">
  <div id="head">
    <div id="head_content">HEADER</div>
  </div>
  <div id="body">
    <div id="menu">MENU</div>
    <div id="page">
      <p>PAGE CONTENT 01</p>
      <p>PAGE CONTENT 02</p>
      <p>PAGE CONTENT 03</p>
      <p>PAGE CONTENT 04</p>
 <!-- <p>PAGE CONTENT 05</p>
      <p>PAGE CONTENT 06</p>
      <p>PAGE CONTENT 07</p>
      <p>PAGE CONTENT 08</p>
      <p>PAGE CONTENT 09</p>
      <p>PAGE CONTENT 10</p>
      <p>PAGE CONTENT 11</p>
      <p>PAGE CONTENT 12</p>
      <p>PAGE CONTENT 13</p>
      <p>PAGE CONTENT 14</p>
      <p>PAGE CONTENT 15</p>
      <p>PAGE CONTENT 16</p>
      <p>PAGE CONTENT 17</p>
      <p>PAGE CONTENT 18</p>
      <p>PAGE CONTENT 19</p>
      <p>PAGE CONTENT 20</p> -->
    </div>
  </div>
  <div id="foot">
    <div id="foot_content">FOOTER</div>
  </div>
</div>

CSS

body {
  margin: 0;
  padding: 0;
  background: #DEDEDE;
}

#main {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

#head {
  height: 40px;
  border-bottom: 1px solid #115293;
  background-color: #1976D2;
}

#head #head_content {
  width: 600px;
  padding: 6px;
  color: #FFFFFF;
  margin: 0 auto;
  text-align: center;
}

#body {
  flex: 1;
  width: 600px;
  margin: 0 auto;
  background-color: #FFFFFF;
  border-left: 1px solid #BFBFBF;
  border-right: 1px solid #BFBFBF;
  display: flex;
}

#body #menu {
  width: 150px;
  padding: 10px;
  background-color: #94C9FF;
  border-right: 1px solid #BFBFBF;
}

#body #page {
  padding: 10px;
  color: #5C5C5C;
}

#foot {
  width: 100%;
  height: 40px;
  color: #FFFFFF;
  border-top: 1px solid #115293;
  background-color: #1976D2;
}

#foot #foot_content {
  width: 600px;
  padding: 6px;
  margin: 0 auto;
  text-align: center;
}