For anyone else who comes across this thread in the future, adding this to stylesheet.css improves converted txt > ePub walkthroughs a bit:
Code:
pre {
font-family: "courier new", courier, monospace;
font-size: 10px;
white-space: pre-wrap;
}
Font size helps it better fit into the default window size, and white-space helps with a
mild Chromium wrapping bug.