问题描述
我希望能够通过 CSS 文件在 ioslides 文档范围内更改 R-Markdown 生成的项目符号的样式。
我知道我可以使用 HTML 来更改 R Markdown 中 ioslides 文件正文中无序列表的格式，正如讨论的 here 更改颜色。对每个项目符号列表都这样做似乎很笨拙。
我尝试将其添加到 CSS 文件中：
ul {list-style-type: circle;}
除了 ioslides 放置的默认项目符号之外，还添加了一个例如圆形项目符号。
因此看来，关键可能是找到一种方法从 ioslides 中的无序列表中删除项目符号（之后可以添加样式项目符号来代替它们），但将其添加到 CSS 文件中：
ul {list-style: none;}
（在我们没有前一个属性的情况下）不会移除项目符号。
尽管 ioslides reference manual 非常有用，但它和 other searches 都没有提供进一步的见解。
RStudio 中 ioslides 演示文稿的可重现代码是：
CSS
（作为 style.html 保存到与下面的 .Rmd 片段相同的目录中。调整项目符号的代码位于第 65 - 68 行。此样式表来自给定 here 的 ioslides 默认值。 )
<!DOCTYPE html>
<html$if(lang)$ lang="$lang$" xml:lang="$lang$"$endif$>
<head>
<title>$if(title-prefix)$$title-prefix$ - $endif$$pagetitle$</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="chrome=1">
<meta name="generator" content="pandoc" />
$if(date-meta)$
<meta name="date" content="$date-meta$" />
$endif$
<meta name="viewport" content="width=device-width,initial-scale=1">
<meta name="apple-mobile-web-app-capable" content="yes">
<base target="_blank">
<script type="text/javascript">
var SLIDE_CONFIG = {
// Slide settings
settings: {
$if(title)$
title: '$title$',$endif$
$if(subtitle)$
subtitle: '$subtitle$',$endif$
useBuilds: true,usePrettify: true,enableSlideAreas: true,enableTouch: true,$if(analytics)$
analytics: '$analytics$',$endif$
$if(logo)$
favIcon: '$logo$',$endif$
},// Author information
presenters: [
$for(author)$
{
name: $if(author.name)$ '$author.name$' $else$ '$author$' $endif$,company: '$author.company$',gplus: '$author.gplus$',twitter: '$author.twitter$',www: '$author.www$',github: '$author.github$'
},$endfor$
]
};
</script>
$for(header-includes)$
$header-includes$
$endfor$
<style type="text/css">
ul {list-style: none;} /* Does not repress ioslides-generated bullets */
li::marker {display: none;} /* Does not repress ioslides-generated bullets */
li {list-style-type: circle;} /* Creates bullest *in addition to* those created by ioslides */
b,strong {
font-weight: bold;
}
em {
font-style: italic;
}
summary {
display: list-item;
}
slides > slide {
-webkit-transition: all $transition$s ease-in-out;
-moz-transition: all $transition$s ease-in-out;
-o-transition: all $transition$s ease-in-out;
transition: all $transition$s ease-in-out;
}
.auto-fadein {
-webkit-transition: opacity 0.6s ease-in;
-webkit-transition-delay: $transition$s;
-moz-transition: opacity 0.6s ease-in $transition$s;
-o-transition: opacity 0.6s ease-in $transition$s;
transition: opacity 0.6s ease-in $transition$s;
opacity: 0;
}
/* https://github.com/ropensci/plotly/pull/524#issuecomment-468142578 */
slide:not(.current) .plotly.html-widget{
display: block;
}
code{white-space: pre-wrap;}
span.smallcaps{font-variant: small-caps;}
span.underline{text-decoration: underline;}
div.column{display: inline-block; vertical-align: top; width: 50%;}
div.hanging-indent{margin-left: 1.5em; text-indent: -1.5em;}
ul.task-list{list-style: none;}
$if(quotes)$
q { quotes: "“" "”" "‘" "’"; }
$endif$
$if(highlighting-css)$
$highlighting-css$
$endif$
$if(displaymath-css)$
.display.math{display: block; text-align: center; margin: 0.5rem auto;}
$endif$
$if(logo)$
slides > slide:not(.nobackground):before {
font-size: 12pt;
content: "";
position: absolute;
bottom: 20px;
left: 60px;
background: url($logo$) no-repeat 0 50%;
-webkit-background-size: 30px 30px;
-moz-background-size: 30px 30px;
-o-background-size: 30px 30px;
background-size: 30px 30px;
padding-left: 40px;
height: 30px;
line-height: 1.9;
}
$endif$
</style>
$for(css)$
<link rel="stylesheet" href="$css$" $if(html5)$$else$type="text/css" $endif$/>
$endfor$
</head>
<body style="opacity: 0">
$if(widescreen)$
<slides class="layout-widescreen">
$else$
<slides>
$endif$
$if(include-before)$
$for(include-before)$
$include-before$
$endfor$
$else$
<slide class="title-slide segue nobackground">
$if(logo)$
<aside class="gdbar"><img src="$logo$"></aside>
$endif$
<!-- The content of this hgroup is replaced programmatically through the slide_config.json. -->
<hgroup class="auto-fadein">
<h1 data-config-title><!-- populated from slide_config.json --></h1>
$if(subtitle)$<h2 data-config-subtitle><!-- populated from slide_config.json --></h2>$endif$
<p data-config-presenter><!-- populated from slide_config.json --></p>
$if(date)$
<p style="margin-top: 6px; margin-left: -2px;">$date$</p>
$endif$
</hgroup>
</slide>
$endif$
RENDERED_SLIDES
$for(include-after)$
$include-after$
$endfor$
<slide class="backdrop"></slide>
</slides>
$if(mathjax-url)$
<!-- dynamically load mathjax for compatibility with self-contained -->
<script>
(function () {
var script = document.createElement("script");
script.type = "text/javascript";
script.src = "$mathjax-url$";
document.getElementsByTagName("head")[0].appendChild(script);
})();
</script>
$endif$
<!-- map slide visiblity events into shiny -->
<script>
(function() {
if (window.jQuery) {
window.jQuery(document).on('slideleave',function(e) {
window.jQuery(e.target).trigger('hidden');
});
window.jQuery(document).on('slideenter',function(e) {
window.jQuery(e.target).trigger('shown');
});
}
})();
</script>
</body>
</html>
.Rmd ioslides 代码
（保存为，例如，test.Rmd 到与 style.html 相同的目录中，如上。此代码来自 ioslides manual。）
---
title: "Habits"
author: John Doe
output:
ioslides_presentation:
template: style.html
---
# In the morning
## Getting up
- Turn off alarm
- Get out of bed
## Breakfast
- Eat eggs
- Drink coffee
# In the evening
## Dinner
- Eat spaghetti
- Drink wine
TYIA
解决方法
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