mkdocs-material/src/assets/stylesheets/extensions/_footnotes.scss

131 lines
3.5 KiB
SCSS

////
/// Copyright (c) 2016-2017 Martin Donath <martin.donath@squidfunk.com>
///
/// Permission is hereby granted, free of charge, to any person obtaining a
/// copy of this software and associated documentation files (the "Software"),
/// to deal in the Software without restriction, including without limitation
/// the rights to use, copy, modify, merge, publish, distribute, sublicense,
/// and/or sell copies of the Software, and to permit persons to whom the
/// Software is furnished to do so, subject to the following conditions:
///
/// The above copyright notice and this permission notice shall be included in
/// all copies or substantial portions of the Software.
///
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
/// DEALINGS
////
// ----------------------------------------------------------------------------
// Rules
// ----------------------------------------------------------------------------
// Scoped in typesetted content to match specificity of regular content
.md-typeset {
// All superscripts with a footnote reference or back reference
sup[id^="fnref:"] {
// Add spacing to anchor for offset
&::before {
display: inline-block;
content: "";
}
// Targeted anchor
&:target::before {
margin-top: -(5.6rem + 2.4rem + 1.8rem);
padding-top: (5.6rem + 2.4rem + 1.8rem);
}
}
// Footnotes extension
.footnote {
color: $md-color-black--light;
font-size: ms(-1);
// Remove additional spacing on footnotes
ol {
margin-left: 0;
}
// Footnote
li {
transition: color 0.25s;
// Un-targeted footnote
&::before {
display: block;
height: 0;
}
// Darken color for targeted footnote
&:target {
color: $md-color-black;
}
// Targeted footnote
&:target::before {
margin-top: -(5.6rem + 2.4rem + 1rem);
padding-top: (5.6rem + 2.4rem + 1rem);
pointer-events: none;
}
// Remove spacing on first element
:first-child {
margin-top: 0;
}
// Make back references visible on hover
&:hover .footnote-backref,
&:target .footnote-backref {
transform: translateX(0);
opacity: 1;
}
// Active or targeted back reference
&:hover .footnote-backref:hover,
&:target .footnote-backref {
color: $md-color-accent;
}
}
}
// Render a thin line before footnote
.footnote-ref::before {
display: inline;
margin: 0 0.2em;
border-left: 0.1rem solid $md-color-black--lighter;
font-size: 1.25em;
content: "";
vertical-align: -0.5rem;
}
// Footnote back-reference
.footnote-backref {
@extend %md-icon;
display: inline-block;
transform: translateX(0.5rem);
transition:
transform 0.25s 0.125s,
color 0.25s,
opacity 0.125s 0.125s;
color: $md-color-black--lighter;
// Hack: remove Unicode arrow for icon
font-size: 0;
opacity: 0;
vertical-align: text-bottom;
// Back reference icon
&::before {
font-size: 1.6rem;
content: "keyboard_return";
}
}
}