On the info page: """ <div><span class="highlight">M</span></div> <div><span class="highlight">M</span></div> <div><spam class="highlight">M</spam></div> <d

On the info page: """ <div><span class="highlight">M</span></div> <div><span class="highlight">M</span></div> <div><spam class="highlight">M</spam></div> <div><span class="highlight">M</span></div> proportional fonts can make it easier to spot typos """ The example given demonstrates that a certain subset of typos can be caught using proportional fonts, but not all. If a word has too many or too few characters in it, I think you are more likely to spot it utilising a monospaced font. EDIT: the quote has been made more legible.