barryvdh/laravel-dompdf check if page is broken?

Question

I am using barryvdh/laravel-dompdf. I want to know that is there any way to find that the page is fully populated and the content goes to the next page? The documentation mentions the page break event by CSS

<style>
.page-break {
    page-break-after: always;
}
</style>
<h1>Page 1</h1>
<div class="page-break"></div>
<h1>Page 2</h1>

But my problem is to actually know exactly when the page is fully populated.