javascript - Color every character differently

Question

I am using KK Countdown to countdown to Xmas for a site.

I have a design which I have to follow that has each letter of the day countown with a blue background and border radius.

Right now the html is output like this

<span class="kkcount-down" data-time="1387929600">
     <span class="kkcountdown-box">
          <span class="kkc-dni">169</span>
          <span class="kkc-dni-text">DAYS </span>
          <span class="kkc-godz">23</span>
          <span class="kkc-godz-text"> </span>
          <span class="kkc-min">19</span>
          <span class="kkc-min-text"> </span>
          <span class="kkc-sec">48</span>
          <span class="kkc-sec-text">HOURS</span>
     </span>
</span>

The class kkc-dni is the part I am trying to target here.

I want to add a background colour to each letter inside that span.

Preferably with CSS. Is this possible?

I have used CSS before to style the first letter of paragraphs before but this is quite different and I cannot find any information on it.

Any suggestions?

Note: Because I am using a plugin to do this countdown I am not sure if I can change the way it outputs the spans and html. If I could wrap each letter in a span I would.

Answer 1

I want to add a background colour to each letter inside that span.

Using an array of colors:

const colors = ["#0bf", "#f0b", "#fb0", "#b0f"];

$('.kkc').find('span').each(function() {

  const text = $(this).text();
  const len = text.length;
    
  const newCont = [...text].reduce((a, ch, i) => 
    a + `<span style="background:${colors[i % colors.length]}">${ch}</span>`, ""
  );

  $(this).html(newCont);

});

.kkcountdown-box>span>span {
  background: red;
}

<div class="kkc">
  <span class="kkc-dni">169</span>
  <span class="kkc-dni-text">DAYS </span>
  <span class="kkc-godz">23</span>
  <span class="kkc-godz-text"> </span>
  <span class="kkc-min">19</span>
  <span class="kkc-min-text"> </span>
  <span class="kkc-sec">48</span>
  <span class="kkc-sec-text">HOURS</span>
</div>

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