Study tools

Per-paragraph bookmark / highlight / note tools inside the Library book reader.

Updated 2026-08-23

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.study-tools is the bookmark / highlight / note toolset that appears beside paragraphs inside the Library book reader. It lives in the dedicated right-gutter column on each paragraph (.library-book__para-actions) so the buttons never overlap the body text.

Source: themes/bifrost/sass/components/_study-tools.scss

ClassWhat
.study-tools__para-toolbarThe horizontal row of small icon buttons for a paragraph.
.study-tools__btnOne button — 1.75rem square, hairline border, tooltip on hover.
.study-tools__btn--bookmarkBookmark toggle.
.study-tools__btn--highlightHighlight on/off + colour picker.
.study-tools__btn--noteNote editor trigger.

Visibility is gated by the parent .library-book__para-actions — buttons fade in on paragraph hover or selection (opacity: 0 → 1), and stay visible on touch where there’s no hover.

Live examples#

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