JSFiddle - React, Tailwind, and code Playground

HTML

<div class="parent">
<p>This is the parent container</p>
<br/><br/><br/>
<p>This is the parent container</p>
<br/><br/><br/>
<br/><br/><br/>
<span class="child">Last line at the bottom</span>

CSS

.parent 
{ 
  position: relative; 
  background-color:lime;
}

.child 
{ 
 position: absolute; 
 bottom: 0; 
 background-color:red;
 right:0;
}