<p id="noWhitespace">Dogs are silly.</p>

<p id="whitespace">Kats
                   
    are
        sily.</p>
<p id="demo_a"></p>
<p id="demo_b"></p> 

<label for="movie">Choose a movie to upload:</label>
<input type="file" name="movie" accept="video/*" />
<label for="poster">Choose a poster:</label>
<input type="file" name="poster" accept="image/png, image/jpeg" />

label {
  display: block;
  margin-top: 1rem;
}

input {
  margin-bottom: 1rem;
}

let a = document.getElementById("noWhitespace").innerHTML;
document.getElementById("demo_a").innerHTML = a;
let b = document.getElementById("whitespace").innerHTML;
document.getElementById("demo_b").innerHTML = b;