Question

Is it possible to replace ul bullets with a button? I know you can change to images with CSS but if I wanted an actual element?

Answer 1

This isn’t possible as you asked, but you could, perhaps, emulate it:

<ul>
    <li><button>some button text</button>List-element text.</li>
</ul>

And the following CSS:

ul, li {
    list-style-type: none;
}

li {
    padding-left: 0;
    margin-left: 0;
}

li button {
    margin-right: 2em;
}

JS Fiddle demo.

The success, or applicability, of this approach does, of course, depend entirely on your use-case which your question omits. With more detail, perhaps this answer can become more useful.