HTML limits you to a signed 32-bit int in ordered lists

HTML allows you to specify a starting number from which an ordered list (<ol>) should start. I thought “Is there an upper bound?”.

Turns out: Yes, there is. It’s 2147483647 (i.e. 2³¹-1 ). Looks like a signed 32-bit integer to me.

<ol start=2147483645>
    <li>I am still in order</li>
    <li>As am I</li>
    <li>Me too</li>
    <li>💥 Limit reached</li>
    <li>💥 Limit reached</li>
    <li>💥 Limit reached</li>
</ol>

The above snippet will render as the following:

I am still in order
As am I
Me too
💥 Limit reached
💥 Limit reached
💥 Limit reached