/* Worked examples retain their original warm, quiet background. Each complete
   expression may scroll locally at narrow widths, without widening the page. */
.lesson-content .example{min-width:0}
.lesson-content .example-math{display:inline-block;max-width:100%;box-sizing:border-box;overflow-x:auto;overflow-y:hidden;vertical-align:middle;padding:.18em .1em;line-height:1.5;white-space:nowrap}
.lesson-content .example-math .katex{font-size:1.08em}