Include a CSS counter style class that adds leading zeros

Looking for a way to increment a particular <p> style class (p.wp as an example) from 1 - n across multiple HTML pages.

The challenge is that the number needs to have 4 digits, ranging from 0001 to 0117.

#start_wp {counter-reset: WP 0;}

p.wp{}

p.wp:before{
counter-increment: WP 1;
content: "WP 000" counter(WP, decimal)  ':';}
<body id="start_wp">
<p class="wp">This is a work package</p>
<p class="wp">This is a work package</p>
</body>

Setting a number from 0001-0009 is simple using auto-number with before:. However, creating additional classes for 00nn and 0nnn seems cumbersome. Is there a way to automate this through JavaScript or jQuery?

Main challenges:

  • Where should I place counter-reset for continuous numbering across all pages?
  • Can it be set using an ID?
    • Should the jQuery or JS code be added to each affected page?

While CSS is clear, the world of JS and jQuery is daunting. Seeking guidance.

Update:

After scouring other code snippets, this was crafted:

   function LeadingZeros (){
  var num = 4;
  if num = (num < 10)
      result = ("000" + num);

  if num = (num < 100)
      result = ("00" + num);

  if num = (num < 1000)
      result = ("0" + num);
}

Uncertain about:

  • If this approach is correct
  • Next steps after reaching this point

Any advice?

Answer №1

If you want to add leading zeros using CSS, you can achieve that by utilizing a counter-style declaration like this:

counter(counter, <counter-style>)
. According to the explanation on CSS Tricks:

... numbers don't have to be in decimal format. They can take any form that is supported by list-style-type...

To implement leading zeros, you can use

content: counter(my-counter, decimal-leading-zero)
. Make sure to read through the entire article for more insight on how to proceed with this approach.

Answer №2

It is possible to achieve this functionality, but it may vary depending on the browser being used. (Experimental feature)

    @counter-style pad-4 {
        system: numeric;
        symbols: "0" "1" "2" "3" "4" "5" "6" "7" "8" "9";
        pad: 4 "0";
    } 

After setting up the counter style, you can implement it in different ways:

    ol { 
      list-style-type: pad-4;           
     }

or

    .class::after {
        content: "." counter(output-decimal, pad-4);
    }

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