How To Prevent Text Animation from Changing Block Height?

Site URL: https://wroteon.com

I just added a typing effect via JS to my home page and love the look on desktop, but when viewing the page on mobile, the animation of the text causes it to wrap to a new line, which expands the size of the block and is quite distracting. Is it possible to keep the block size fixed while using this animation?

I've tried setting a fixed height on the section, but it still ends up moving around the image block below it. Is there a way to keep the text container from changing sizes with animation?

If it helps, the code for the text is below:

<h4> The webpage opens revealing a bespectacled man. This is ALLEN ROUGHTON, a <span id="app"></span></h4>

<script src="https://unpkg.com/typewriter-effect@latest/dist/core.js"></script>

<script>
    var app = document.getElementById('app');

    var typewriter = new Typewriter(app, {
        loop: true,
        delay: 75,
    });


    typewriter
        .pauseFor(2000)
        .typeString('screenwriter')
        .pauseFor(1000)
      .deleteChars(12)
      .pauseFor(500)
      .typeString('script reader')
      .pauseFor(1000)
      .deleteChars(13)
      .pauseFor(500)
      .typeString('consultant')
      .pauseFor(1000)
        .start();

</script>

It looks fine here. Did you solve it?

As a temporary solution I reduced the font size @media screen so it would all fit on the same line. I'd still prefer it be at the original font size.

I was also able to make it work on mobile by adding a bunch   to get things to add spaces until it added another line, but that messed up the spacing for desktop so that it started to bump a line instead.

So I'm still looking for a more elegant solution if there is one.

Creedon's solution was near perfect. I just had to adjust the height value to 160px and adjusted the code block to make sure the entire thing was contained in a single h4 span so the min-height effected the entire block only once. From my limited experimentation it seems to work at every resolution now.

Thanks so much for your help!