custom.css

/* Headings */

h2, h3, h4, h5, h6 {
  font-weight: 400;
}

/* UI elements: left and right sidebars, "Back to top" button, admonitions, Copy button */
.sidebar-drawer, .toc-drawer, .back-to-top, .admonition, .copybtn {
  /* Sans-serif system font stack */
  font-family: -apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, helvetica, Cantarell, Ubuntu, roboto, noto, arial, sans-serif;
}

/* Hide ToC caption text within the main body (but leave them in the side-bar). */
/* https://github.com/hynek/structlog/blob/b488a8bf589a01aabc41e3bf8df81a9848cd426c/docs/_static/custom.css#L17-L20 */
#furo-main-content span.caption-text {
  display: none;
}