how to avoid line splitting code example

Example 1: html prevent newline

<style>
.nobr { 
  white-space: nowrap; 
}
</style>
<!-- Or with Tailwindcss -->
<h2 class="whitespace-nowrap">.....</h2>

Example 2: how to make a div text don't go to the new line

/*i tried to increase the width of the div i was writing in*/