Tag: style

Learn to style HTML using CSS — Tutorials by Mozilla

Learn to style HTML using CSS — Tutorials by Mozilla

Cascading Stylesheets — or CSS — is the first technology you should start learning after HTML. While HTML is used to define the structure and semantics of your content, CSS is used to style it and lay it out. For example, you can use CSS to alter the font, color, size, and spacing of your content, split it into multiple columns, or add animations and other decorative features.


I was personally encoutered CSS in multiple stages of my Data Science career:

  • When I started using (R) markdown (see here, or here), I could present my data science projects as HTML pages, styled through CSS.
  • When I got more acustomed to building web applications (e.g., Shiny) on top of my data science models, I had to use CSS to build more beautiful dashboard layouts.
  • When I was scraping data from Ebay, Amazon, WordPress, and Goodreads, my prior experiences with CSS & HTML helped greatly to identify and interpret the elements when you look under the hood of a webpage (try pressing CTRL + SHIFT + C).

I know others agree with me when I say that the small investment in learning the basics behind HTML & CSS pay off big time:

I read that Mozilla offers some great tutorials for those interested in learning more about “the web”, so here are some quicklinks to their free tutorials:

Screenshot via developer.mozilla.org/en-US/docs/Learn/CSS/CSS_layout/Introduction
Data Visualization Style Guide Repositories

Data Visualization Style Guide Repositories

Amy Cesal put together (1) this great overview of style guides for data visualization practice. Moreover, in the original tweet, Amy refers to other great repositories such as (2) this PolicyViz one and (3) this humongous one by Adele.

Amy’s list includes many references to the best practices used by some of the leading data journalism companies, such as the BBC, or professional data companies like Salesforce and IBM.

As I’m worried that this great repository may not stand the test of time on the current Google Docs location, here are the base URLs once more:

URL of guidelines Company name
https://sunlightfoundation.com/2014/03/12/datavizguide Sunlight Foundation
https://cfpb.github.io/design-manual/data-visualization/data-visualization.htmlConsumer Financial Protection Bureau
https://knightcenter.utexas.edu/mooc/file/tdmn_graphics.pdfDallas Morning News
https://urbaninstitute.github.io/graphics-styleguide/The Urban Institute
https://public.tableau.com/profile/bbc.audiences#!/vizhome/BBCAudiencesTableauStyleGuide/HelloBBC Audiences
https://style.ons.gov.uk/category/data-visualisation/Office for National Statistics
https://www.ibcs.com/standardsInternational Business Communication Standards (IBCS®)
https://data.london.gov.uk/blog/city-intelligence-data-design-guidelines/London City Intelligence
https://www.consults-iot.comConsults-IoT.Com LLP
https://material.io/design/communication/data-visualization.htmlGoogle- Material Design
https://github.com/glosophy/CatoDataVizGuidelines/blob/master/PocketStyleBook.pdfCato Institute

If you have any resources or style guides to contribute to Amy’s list, you can do so via this link.