JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">

  <div id="header">
    <i>Header</i>
  </div>
  
  <div id="content">
    <i>Content</i>
  </div>
  
  <div id="footer">
      <i>Footer</i>
  </div>

</div>

CSS

body{
  margin: 0;
}

#wrapper{
  margin: 0;
  height: 100vh;
  max-height: 100vh;
  /* overflow: hidden; */
display: flex;
  flex-direction: column;
}

#header{
  background: blue;
  height: 3rem;
}

#content{
  background: red;
  flex-grow: 1;
  
}

#footer{
  background: green;
  height: 3rem;
}