The Periodic Table in CSS

王林
Release: 2024-09-08 18:30:46
Original
915 people have browsed it

Like the Solar System, The Periodic Table has been done in CSS a lot of times … but it has never been done as simply, as I'm about to show you.

Let's start with some basic, semantic markup:

<ol>
  <li data-mass="1.0078">
    <abbr title="Hydrogen">H</abbr>
  </li>
</ol>
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We use an ordered list,

    , as this is an ordered system of elements.

    We then have a

  1. tag for each element, and an tag.

    The name of the element is an abbreviation for the word “abbreviation”, which is cute.
    — Heydon Pickering.

    Now, instead of Googling the atomic mass of each element, we just ask ChatGPT to fill out the rest of the markup. We also ask it to add a 3-letter class to each element, indicating which type the element is, ie. a "noble gas" (class="nbl") etc. — and we get 118 elements:

    <ol>
      <li data-mass="1.0078" class="rnm">
        <abbr title="Hydrogen">H</abbr>
      </li>
      <li data-mass="4.0026" class="nbl">
        <abbr title="Helium">He</abbr>
      </li>
      <li data-mass="6.941" class="alk">
        <abbr title="Lithium">Li</abbr>
      </li> 
      <!-- etc. -->
    </ol>
    
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    It doesn't look great yet; it's just a numbered list with abbreviations for the elements.

    1. H
    2. He
    3. Li
    etc.
    
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    Let's turn the list into a 18x10 grid:

    ol {
      all: unset;
      container-type: inline-size;
      counter-reset: element;
      display: grid; 
      font-size: 2cqi;
      gap: 1px;
      grid-template-columns: repeat(18, 1fr);
      grid-template-rows: repeat(10, 1fr);
    }
    
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    Now, we set each

  2. to be a square box and create an internal grid to place the atomic number top-left, the mass (data-mass) in the top-right, and the tag below:

    li {
      aspect-ratio: 1 / 1;
      background: #EEEEEE;
      counter-increment: element;
      display: grid;
      grid-template-columns: 1fr 1fr;
      grid-template-rows: 1fr 1fr 1fr;
      padding: .25ch;
      transition: scale .125s ease-in;
      &::before {
        content: counter(element);
      }
      &::after {
        content: attr(data-mass);
        grid-area: 1 / 2 / 2 / 2;
        justify-self: end;
      }
      &::before, &::after {
        font-size: .33em;
      }
    }
    
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    Before we see what we've accomplished, let's ask ChatGPT to add some colors to the "element-type"-classes it added earlier. Now we get:

    The Periodic Table in CSS

    Looks great, but not exactly like the periodic table we learned in school. Let's add some grid-magic.

    For Helium, we want it to be pushed to the last column. As we know the grid is 18 columns wide, we simply add:

    li {
      &:nth-of-type(2) { grid-column: 18; }
    }
    
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    Since this is an ordered list, the nth-of-type value will always correspond to the atomic number of each element. We want to move Boron and Aluminum to column 13:

    li {
      &:nth-of-type(5), &:nth-of-type(13) { grid-column: 13; }
    
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    Let's check it out:

    The Periodic Table in CSS

    An improvement, for sure, but since grid-column just pushes the grid forward, how can we take elements 58-71 and 90-103 (the lathenides and actinides) completely out of their grid-flow and add them to those 2 rows below the main grid?

    For that, we can use grid-area, where we define:

    row-start / col-start / row-end / col-end

    In our case, that'll be:

    li {
       /* Lanthenides */
      &:nth-of-type(58) { grid-area: 9 / 4 / 9/ 4; }
      &:nth-of-type(59) { grid-area: 9 / 5 / 9/ 5; }
      &:nth-of-type(60) { grid-area: 9 / 6 / 9/ 6; }
      /* etc. */
    
      /* Actinides */
      &:nth-of-type(90) { grid-area: 10 / 4 / 10 / 4; }
      &:nth-of-type(91) { grid-area: 10 / 5 / 10 / 5; }
      &:nth-of-type(92) { grid-area: 10 / 6 / 10 / 6; }
      / etc. */
    }
    
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    And now we get (for clarity, I've enabled Dev Tools' grid-visualizer):

    The Periodic Table in CSS

    Notice how the grid-elements after the element we've moved out of the flow, continue in the main flow!


    Filtering

    Now, let's use these "element type"-classes, we had ChatGPT generate earlier, to filter the periodic table.

    First, let's add some basic HTML:

    <fieldset>
      <legend>Filter</legend>
      <label>
        <input type="radio" id="alk" name="filter">
        Alkali Metals
      </label>
    </fieldset>
    
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    Then, we ask chatGPT to fill out the rest, and add an "All"-option with no id:

    The Periodic Table in CSS

    We need a bunch of JavaScript to filter, right? No, we can do this in plain CSS:

    body:has(#alk:checked) li:not(.alk) { 
      opacity: 0.2;
    }
    
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    The logic works like this: If the body contains a checkbox with the id="alk" and it's checked, the styles will be applied to all

  3. elements that don’t have the .alk class.

    Repeat for all the types and classes.

    Let's click on "metalloids":

    The Periodic Table in CSS

    How cool is that?


    That concludes this tutorial … but wait … what does that Heisenberg filter do? It wasn't in the list of filters from ChatGPT?

    Let's click it:

    The Periodic Table in CSS

    … and now you know my favorite TV-show of all time!

    Demo

    Here's a Codepen — even though it's fully responsive, I recommend viewing it on larger screens:

    The above is the detailed content of The Periodic Table in CSS. For more information, please follow other related articles on the PHP Chinese website!

source:dev.to
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