html-presentations

html-presentations

A very simple web component for browser based presentations

Install

Add the following snippet to your page:

<script
  type="module"
  src="https://unpkg.com/html-presentations?module"
></script>
<link rel="stylesheet" href="https://unpkg.com/html-presentations/style.css" />

Usage

Element	Attributes	Description
presentation-body		Every presentation has to be wrapped in a body
presentation-slide	first last class style	A slide in your presentation. First marks your first slide, last the final one. This will only remove the "previous" & "next" markers
block-lessons	id class style	A wrapper for lessons. Add an id to make sure the appearOnClick works correctly
block-lesson	appearOnClick class	A single lesson. The appearOnClick attribute is responsible for showing it on a specified index
block-code	lang	A code block. Available languages can be found at prism

On top of that you have the power of html and css at your disposal, and everything that can be embedded on the interweb.

<!-- optionally override the color default by setting this css vars -->
<style>
  body {
    --colorContrast: #331832ff;
    --colorHighlight: #d81e5bff;
    --colorFocus: #f0544fff;
    --colorShow: #c6d8d3ff;
    --colorMain: #fdf0d5ff;
  }
</style>
<presentation-body>
  <!-- marks the first slide with the attribute "first" -->
  <presentation-slide first>
    <!-- Add your own classes for your content -->
    <h1 class="pushToMiddle">Welcome to the presentation</h1>
    <h2>Press CTRL+o to open in fullscreen mode</h2>
  </presentation-slide>
  <presentation-slide>
    <h2>And summarized, appearing on click</h2>
    <!-- Use the block-lessons element to show elements in a grid -->
    <block-lessons id="lesson-1">
      <block-lesson>
        <h3>Lesson 1</h3>
        <h4>I can use lessons</h4>
      </block-lesson>
      <!-- And optionally have the block-lesson appear after a specified number of clicks -->
      <block-lesson appearOnClick="1">
        <h3 class="lesson">Lesson 2</h3>
        <h4 class="lesson">I learned to learn</h4>
      </block-lesson>
      <block-lesson appearOnClick="2">
        <h3 class="lesson">Lesson 3</h3>
        <h4 class="lesson">I learned to learn</h4>
      </block-lesson>
      <block-lesson appearOnClick="3">
        <h3 class="lesson">Lesson 4</h3>
        <h4 class="lesson">I learned to learn</h4>
      </block-lesson>
      <block-lesson appearOnClick="4">
        <h3 class="lesson">Lesson 5</h3>
        <h4 class="lesson">I learned to learn</h4>
      </block-lesson>
    </block-lessons>
  </presentation-slide>
  <presentation-slide>
    <!-- Highlight code using prism - add your own theme to customize it -->
    <block-code lang="javascript">
      // supports syntax highlight 
      if ("block-code") { 
        console.log("highlighting it!"); 
      }
    </block-code>
    <block-code lang="markup">
      <block-code> This is highlighted markup! </block-code>
    </block-code>
  </presentation-slide>
  <!-- Annotate the last slide -->
  <presentation-slide last>
    <h1>Bye!</h1>
  </presentation-slide>
</presentation-body>

Default CSS

You can use a default css from a cdn like https://unpkg.com/html-presentations/style.css or download it from the repo and adjust it to you needs. It comes with a few extras that might help you create great presentations. See https://matthiaskainer.github.io/html-presentation/ for more details.

Styled Elements

h1, h2, h3, h4, strong, blockquote, silent, table

Styled h1 to h4, strong (to highlight), blockquote (for quotations) and silent (for elements that should barely be visible) elements, as well as a styled table

Additional classes for headlines

.title and .pushToMiddle, that allows you to center your content, ie <h2 class="title">Subheadline</h2>

More fun with blocks

The following classes work only on block-lesson elements

• .block-full - Block is taking the full width
• .block-half - Block is taking almost half of the page. Two can fitted next to each other
• .block-wide & .block-short - create blocks that follow the golden ratio on their width.

I don't want to write html but want to use this tool!

Erm... point taken; choosing a tool called html-presentation and then ask to not use html.

But okay, you can for instance create a presentation.pug file like this:

<!DOCTYPE html>
head
  meta(charset='utf-8')
  title Todo List
  script(type='module' src='https://unpkg.com/html-presentations?module')
  link(rel='stylesheet' href='https://unpkg.com/html-presentations/style.css')
body
    presentation-body
        presentation-slide(first='')
            h1.title Welcome to the presentation
        presentation-slide
            block-code(lang='markup')
                block-code  This is highlighted markup!
        presentation-slide(last='')
            h1 Bye!

and then call npx pug-cli presentation.pug and a valid presentation.html is created. This should work with whathever language that allows you to specifiy markup.