JSFiddle - React, Tailwind, and code Playground

HTML

<div id="start">
<span id="one" class="sText">Your Calculation Results is = </span>
<span id="two" class="result">  
<script type="text/javascript">
var tst = 'I want the result here';
  document.writeln(tst);
</script>
</span>

CSS

.result {
    font-weight: bold;

}