<p>With a wide window the three-column layout looks all right, though you could perhaps make the centre column a bit wider (long lines of text seem to be more legible on screen than on the printed page):</p>

<p><a href="https://i.stack.imgur.com/liBiV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/liBiV.png" alt="Screen shot with wide browser window"></a></p>

<p>But reducing the width of the browser window gradually squashes the centre column&mdash;the one readers are actually reading&mdash;to the point of its being absurdly narrow, in view of all the space available in the left &amp; right columns:</p>

<p><a href="https://i.stack.imgur.com/N9479.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/N9479.png" alt="Screen shot with medium-width browser window"></a></p>

<p>If you continue past this point, the right column suddenly disappears, the text in the centre column gets reflowed, &amp; (after some time scrolling up to find your place again) the centre column is wide again (indeed wider than it was with the widest browser window).</p>

<p><a href="https://i.stack.imgur.com/6XXpG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6XXpG.png" alt="Screen shot with narrow browser window"></a></p>

<p>A similar thing happens as you narrow the window further, with the left column disappearing far too late.</p>

<p>I hope this isn't too tricky to fix; just a matter of changing some settings.</p>
