I am trying to update my portfolio website with new Quarto-generated HTML files rather than my older RMarkdown-generated HTML files. I have rendered these updated files and they look great!
However, when I have uploaded this HTML to my GitHub Pages website, using htmlpreview, I get a very different picture...
Keep in mind that htmlpreview works perfectly well for my RMarkdown-renderd documents:
Here is my YAML for the Quarto document if it is of help:
author: "Brian Lookabaugh"
toc: true
number-sections: true
format:
html:
code-background: true
I think using self-contained: true would solve your case, since you would need a standalone HTML file.
author: "Brian Lookabaugh"
toc: true
number-sections: true
format:
html:
self-contained: true
code-background: true
For reference, see this page from Quarto Docs.
While there seems to be quite a bit of discussion about this (here, here, here), it is not clear how one could remove the section heading auto_identifiers (the "#" that appears after a slide's section header; h1,h2,etc.) from a Xaringan theme in Rmarkdown.
Can this be done within the YAML? (markdown: kramdown seems to have an auto_ids: false addition to the header as shown here)
Can this be done in a custom.css by editing .h1 etc.?
Similar to this post:
If the headers are specified as:
# header1 {#header1id}
## header2
### header3
The resulting HTML:
<h1 id="header1id">header1</h1>
<h2 id="header2">header2</header2>
<h3 id="header3">header3</header3>
But I would prefer:
<h1 id="header1id">header1</h1>
<h2>header2</h2>
<h3>header3</h3>
Obviously, using the html directly works (e.g., <h1>header1</h1>), but it would be great to be able to use the markdown # headers.
For completeness, an example YAML within a Rmarkdown.Rmd Xaringan template:
---
title: "Please Remove the # Anchors"
author: "Begin Er"
date: "Now"
output:
xaringan::moon_reader:
css: [default, metropolis, metropolis-fonts]
nature:
beforeInit: "macros.js"
highlightStyle: github
highlightLines: true
countIncrementalSlides: false
ratio: "16:9"
---
Thanks!
The example below (i.e. saved as a file index.rmd ) has the same code chunk to display an image above and below the top level heading, but the image doesn't appear above the top level heading. This occurs if there is a file _output.yml with only this entry bookdown::gitbook: in the same directory.
That line seems to enforce a table of contents (which I want) and that appears to strip out anything (image or text) before the first top level heading by default (which I don't want) - so can this behaviour be modified?
---
site: bookdown::bookdown_site
---
```{r echo=FALSE, message=FALSE, warning=FALSE}
library(imager)
im <- load.image(system.file('extdata/Leonardo_Birds.jpg',package='imager'))
plot(im, axes=FALSE)
```
# R Markdown
```{r echo=FALSE, message=FALSE, warning=FALSE}
library(imager)
im <- load.image(system.file('extdata/Leonardo_Birds.jpg',package='imager'))
plot(im, axes=FALSE)
```
What follows is workaround to your Options 2 and 3, using Markdown and CSS to style images and HTML+CSS to style text; also, using base64 image (transparent gif) generator as an space separator between elements.
Beware of whitespaces! (at the end of each line - place two white spaces and hit ENTER)
Does one of these approaches/hacks work for you? If not, it would be better to delete the answer, it may be misleading to others.
---
title: |
{width=300px}|
|:-:|
{width=300px style="display: block; margin:0 auto"}
{width=300px height=90px align=left}
{width=300px height=90px align=center}
{width=300px height=90px align=right}
{width=150px}
R Markdown Title
<center>R Markdown Title</center>
<p style="text-align: right;">R Markdown Title</p>
{width=150px}
author: "Author Name"
date: "08/03/2020"
---
Using Markdown table to "style" images |-| (left-aligned), |:-:| (centered) and |-:| (right-aligned) will work well with simple RMarkdown outputs.
I realised that you have an image under # top level heading positioned at the very top of the page - with top:0px. causing image duplication and, possibly, hover problem:
<img src="https://i.imgur.com/GiViTbA.png" style="position:absolute;top:0px;height:100px;" />
replace with:
{width=50px style="display: block; margin:0 auto;"}
and see what will happen.
---
title: |
{width=300px style="display: block; margin:0 auto;"}
{width=50px}
R Markdown Title
{width=50px}
output:
html_document: default
---
# I'm a top level heading {-}
{width=50px style="display: block; margin:0 auto;"}
Note, you need to replace the image with a local image if you want to show the image in the rstudio viewer.
The image will be visible in the html file created when you knit, if you open in a browser connected to the internet.
```{r echo=FALSE, message=FALSE, warning=FALSE}
plot(cars)
```
EDIT:
Let's try to find a common ground, A Minimal Book Example, github here.
Adjustments made in index.Rmd:
---
title: |
{height=300px}
author: "Author Name"
date: "`r Sys.Date()`"
site: bookdown::bookdown_site
output: bookdown::gitbook
---
# Prerequisites
<img src="https://i.imgur.com/GiViTbA.png" style="position:absolute;top:50px;height:300px;align:center;" />
This is a _sample_ book written in **Markdown**. You can use anything that Pandoc's Markdown supports, e.g., a math equation $a^2 + b^2 = c^2$.
index.Rmd output:
Adjustments made in Chapter: Introduction (01-intro.Rmd):
# Introduction {#intro}
{height=240px}
<img src="https://i.imgur.com/GiViTbA.png" style="position:absolute;top:50px;height:300px;align:center;" />
You can label chapter and section titles using `{#label}` after them, e.g., we can reference Chapter \#ref(intro). If you do not manually label them, there will be automatic labels anyway, e.g., Chapter \#ref(methods).
01-intro.Rmd output:
With this solution we are "masking" a top level heading (# Introduction) with .png image, which will appear in the Table of Content as text.
Disadvantage: besides the obvious hack, image width must be at least equal or wider than top level heading title.
Note: 3 options are provided here, and none of them are perfect. The perfect solution may rely on modifications to the bookdown package?
Option 1:
Use includes with before_body like this in your _output.yml file (suggested here):
bookdown::gitbook:
css: assets/style.css
includes:
before_body: assets/big-image.html
after_body: assets/footer.html
Disadvantages:
i) Requires making a html file just to insert an image.
ii) If using a web-based image, won't show in Rstudio viewer.
iii) If using a local image, path can get mixed up and won't show in online web html rendering
iv) Includes image at the top of each chapter of bookdown if using before_body: my_image.html. Alternative option in_header: my_image.html does not seem compatible with the sidebar index.
Option 2
Insert image via yaml in index.rmd, using the solution under Tip 3 Add a Logo in your title/header/footer at this blog post
---
title: |
My title
Disadvantages:
i) When you hover over the image, it displays a copy of the image in a slightly different location (Can this "Hover" behaviour be disabled?)
ii) If using a web-based image, won't show in Rstudio viewer.
iii) If using a local image, path can get mixed up and won't show in online web html rendering
Option 3
The code below borrowed from here (which you can place below the top level heading) presumably goes direct through the knitting process and inserts itself in the final html. The issue is that the image doesn't make room for itself and ends up over the first text. Is there some simple html/css to sort this out?
<img src="https://i.imgur.com/GiViTbA.png" style="position:absolute;top:0px;height:100px;" />
Disadvantages:
i) Image doesn't make room for itself and ends up over the first text. You can get around this with a hack by coding extra space (trial and error) through the yaml title like this:
title: |
.
.
.
.
site: bookdown::bookdown_site
EDIT
This is superseded by Radovan's accepted answer.
This was the best answer, taking option 3 from my previous answer, and combining a code approach to making the relevant space from Radovan's answer.
You will still have problems if you want to include a title in the YAML (I don't need this, as my title is in the image).
Also, on first loading the page, it presents nicely, but image is not seen if you go to the top of the document using the table of contents (the inheader approach used by this bookdown shows a better behaviour, but appears at the top of every chapter, which is not desired).
---
title: |
{height=300px}
output:
html_document: default
---
# I'm a top level heading {-}
<img src="https://i.imgur.com/GiViTbA.png" style="position:absolute;top:50px;height:300px;align:center;" />
Note, you need to replace the image with a local image if you want to show the image in the rstudio viewer.
The image will be visible in the html file created when you knit, if you open in a browser connected to the internet.
```{r echo=FALSE, message=FALSE, warning=FALSE}
plot(cars)
```
The problem of hovering the image duplicating the image can be fixed by removing the line below from the css file that is generated at \libs\gitbook-2.6.7\css\style.css
.book .book-header h1 a:hover{color:inherit;text-decoration:none}#media (max-width:1000px){.book .book-header h1{display:none}}
as a result, this code below places the image right above the title:
---
title: |
{width=400px style="display: block; margin:0 auto; align:center;" }
<center>GEOG380 Basic Stats with R</center>
---
I created index.md for my GitHub pages site
with the following in index.md
---
title: This is my title
layout: default
---
## Welcome to GitHub Pages My Index.md
etc
I am just editing the index.md directly in the GitHub editor. I have not installed Jekyll locally.
What do I change so that the generated source does not have my repository name in the title ?
Looking at the source I have
I have tried changing the theme.
I also tried experimented with adding a header.html to the _includes folder
This caused me to start receiving emails with subject containing "Page build failed"
Since then I have removed all the folders. I no longer get the "Page build failed" email, but I am unsure of how to proceed.
GitHub Pages silently sets default layouts using jekyll-default-layout, as described in Publishing with GitHub Pages, now as easy as 1, 2, 3.
To avoid this, you can create your own _layouts/default.html, which should look something like this:
<!doctype>
<html>
<head>
<title></title>
</head>
<body>
{{ content }}
</body>
</html>
And then apply the layout to your files:
---
layout: default
---
...
If you want to include the page title in the title tag, you can do something like this instead of the _layouts/default.html above:
<!doctype>
<html>
<head>
<title>{{ page.title }}</title>
</head>
<body>
{{ content }}
</body>
</html>
Which will use the title in your YAML front matter:
---
layout: default
title: Title
---
...
For more information, take a look at the Jekyll documentation:
https://jekyllrb.com/docs/home/
The site title can be set in _config.yml
However it seems that the _layout\default.html is also required to make the setting work.
The help to set up the default.html is here
under the title "Customizing your Jekyll theme's HTML layout"
HOW IT WORKS ?
Post content will mention name of layout file which will be in _layout folder. So for following post corresponding layout will be in _layouts/default.html
---
title: This is a post with default layout
layout: default
---
Some text for post
Typically default.html layout consumes files head.html and header.html inside _includes folder.
ACTION
Now you have to look at markdown of your page or post and identify its parent layout (inside _layouts) and from there drill-down into _includes. This will allow you to trace lines those are getting generated into output html. Also you can have your own _includes and _layouts for custom html output.
I'm seeing different behaviour in an R Markdown (Rmd) file depending on how I reference the image I'd like to embed in an HTML document. In the simple example below, the second image is embedded in the document, but the first (using the R chunk) is not.
---
title: "title"
output:
html_document:
mode: selfcontained
theme: null
---
```{r packages, echo=FALSE}
library(htmltools)
```
```{r imgTest, echo=FALSE}
img(src = "http://placehold.it/350x150")
```
<img src="http://placehold.it/350x150">
This is the output in the HTML (for the relevant bit):
<p><img src="http://placehold.it/350x150"/></p>
<p><img src="data:image/png;base64,iVBORw0KG<SNIPPED>"></p>
In summary, using the htmltools function img() within a code chunk does not embed the image but instead it remains a link.
For various reasons, I need the document to be truly self-contained (no links) and to also avoid raw HTML.
Can anyone explain why this is happening and offer a solution? I've tried a variety of chunk options without success so far.