Here in this article:

should you scroll lower, you'll find that the nested surveys are getting bigger. I am not too wise on CSS, but clearly some element is building on itself.

Any applying for grants what's leading to this or the way i might start monitoring it lower?

within this file:

Your comment class has font-size:110%; property onto it.

A simple fix is always to produce a new CSS rule:

.comment .comment {
    font-size: 100%;

Although cleaning the code could be better still.