list-style-type

/* Partial list of types */
list-style-type: disc;
list-style-type: circle;
list-style-type: square;
list-style-type: decimal;
list-style-type: georgian;
list-style-type: trad-chinese-informal;
list-style-type: kannada;

/* <string> value */
list-style-type: "-";

/* Identifier matching an @counter-style rule */
list-style-type: custom-counter-style;

/* Keyword value */
list-style-type: none;

/* Global values */
list-style-type: inherit;
list-style-type: initial;
list-style-type: revert;
list-style-type: revert-layer;
list-style-type: unset;

List 1
<ol class="normal">
  <li>Hello</li>
  <li>World</li>
  <li>What's up?</li>
</ol>

List 2
<ol class="shortcut">
  <li>Looks</li>
  <li>Like</li>
  <li>The</li>
  <li>Same</li>
</ol>

ol.normal {
  list-style-type: upper-alpha;
}

/* or use the shortcut "list-style": */
ol.shortcut {
  list-style: upper-alpha;
}

<ol>
  <li>Apollo</li>
  <li>Hubble</li>
  <li>Chandra</li>
  <li>Cassini-Huygens</li>
  <li>Spitzer</li>
</ol>

<h2>Choose a list style type:</h2>

<div class="container">
  <label for="disc">
    <input type="radio" id="disc" name="type" value="disc" />disc
  </label>

  <label for="circle">
    <input type="radio" id="circle" name="type" value="circle" />circle
  </label>

  <label for="square">
    <input type="radio" id="square" name="type" value="square" />square
  </label>

  <label for="decimal">
    <input type="radio" id="decimal" name="type" value="decimal" />decimal
  </label>

  <label for="cjk-decimal">
    <input
      type="radio"
      id="cjk-decimal"
      name="type"
      value="cjk-decimal" />cjk-decimal
  </label>

  <label for="decimal-leading-zero">
    <input
      type="radio"
      id="decimal-leading-zero"
      name="type"
      value="decimal-leading-zero" />decimal-leading-zero
  </label>

  <label for="lower-roman">
    <input
      type="radio"
      id="lower-roman"
      name="type"
      value="lower-roman" />lower-roman
  </label>

  <label for="upper-roman">
    <input
      type="radio"
      id="upper-roman"
      name="type"
      value="upper-roman" />upper-roman
  </label>

  <label for="lower-greek">
    <input
      type="radio"
      id="lower-greek"
      name="type"
      value="lower-greek" />lower-greek
  </label>

  <label for="lower-alpha">
    <input
      type="radio"
      id="lower-alpha"
      name="type"
      value="lower-alpha" />lower-alpha, lower-latin
  </label>

  <label for="upper-alpha">
    <input
      type="radio"
      id="upper-alpha"
      name="type"
      value="upper-alpha" />upper-alpha, upper-latin
  </label>

  <label for="arabic-indic">
    <input
      type="radio"
      id="arabic-indic"
      name="type"
      value="arabic-indic" />arabic-indic
  </label>

  <label for="armenian">
    <input type="radio" id="armenian" name="type" value="armenian" />armenian
  </label>

  <label for="bengali">
    <input type="radio" id="bengali" name="type" value="bengali" />bengali
  </label>

  <label for="cambodian">
    <input type="radio" id="cambodian" name="type" value="cambodian" />cambodian
  </label>

  <label for="cjk-earthly-branch">
    <input
      type="radio"
      id="cjk-earthly-branch"
      name="type"
      value="cjk-earthly-branch" />cjk-earthly-branch
  </label>

  <label for="cjk-heavenly-stem">
    <input
      type="radio"
      id="cjk-heavenly-stem"
      name="type"
      value="cjk-heavenly-stem" />cjk-heavenly-stem
  </label>

  <label for="cjk-ideographic">
    <input
      type="radio"
      id="cjk-ideographic"
      name="type"
      value="cjk-ideographic" />cjk-ideographic
  </label>

  <label for="devanagari">
    <input
      type="radio"
      id="devanagari"
      name="type"
      value="devanagari" />devanagari
  </label>

  <label for="ethiopic-numeric">
    <input
      type="radio"
      id="ethiopic-numeric"
      name="type"
      value="ethiopic-numeric" />ethiopic-numeric
  </label>

  <label for="georgian">
    <input type="radio" id="georgian" name="type" value="georgian" />georgian
  </label>

  <label for="gujarati">
    <input type="radio" id="gujarati" name="type" value="gujarati" />gujarati
  </label>

  <label for="gurmukhi">
    <input type="radio" id="gurmukhi" name="type" value="gurmukhi" />gurmukhi
  </label>

  <label for="hebrew">
    <input type="radio" id="hebrew" name="type" value="hebrew" />hebrew
  </label>

  <label for="hiragana">
    <input type="radio" id="hiragana" name="type" value="hiragana" />hiragana
  </label>

  <label for="hiragana-iroha">
    <input
      type="radio"
      id="hiragana-iroha"
      name="type"
      value="hiragana-iroha" />hiragana-iroha
  </label>

  <label for="japanese-formal">
    <input
      type="radio"
      id="japanese-formal"
      name="type"
      value="japanese-formal" />japanese-formal
  </label>

  <label for="japanese-informal">
    <input
      type="radio"
      id="japanese-informal"
      name="type"
      value="japanese-informal" />japanese-informal
  </label>

  <label for="kannada">
    <input type="radio" id="kannada" name="type" value="kannada" />kannada
  </label>

  <label for="katakana">
    <input type="radio" id="katakana" name="type" value="katakana" />katakana
  </label>

  <label for="katakana-iroha">
    <input
      type="radio"
      id="katakana-iroha"
      name="type"
      value="katakana-iroha" />katakana-iroha
  </label>

  <label for="khmer">
    <input type="radio" id="khmer" name="type" value="khmer" />khmer
  </label>

  <label for="korean-hangul-formal">
    <input
      type="radio"
      id="korean-hangul-formal"
      name="type"
      value="korean-hangul-formal" />korean-hangul-formal
  </label>

  <label for="korean-hanja-formal">
    <input
      type="radio"
      id="korean-hanja-formal"
      name="type"
      value="korean-hanja-formal" />korean-hanja-formal
  </label>

  <label for="korean-hanja-informal">
    <input
      type="radio"
      id="korean-hanja-informal"
      name="type"
      value="korean-hanja-informal" />korean-hanja-informal
  </label>

  <label for="lao">
    <input type="radio" id="lao" name="type" value="lao" />lao
  </label>

  <label for="lower-armenian">
    <input
      type="radio"
      id="lower-armenian"
      name="type"
      value="lower-armenian" />lower-armenian
  </label>

  <label for="malayalam">
    <input type="radio" id="malayalam" name="type" value="malayalam" />malayalam
  </label>

  <label for="mongolian">
    <input type="radio" id="mongolian" name="type" value="mongolian" />mongolian
  </label>

  <label for="myanmar">
    <input type="radio" id="myanmar" name="type" value="myanmar" />myanmar
  </label>

  <label for="oriya">
    <input type="radio" id="oriya" name="type" value="oriya" />oriya
  </label>

  <label for="persian">
    <input type="radio" id="persian" name="type" value="persian" />persian
  </label>

  <label for="simp-chinese-formal">
    <input
      type="radio"
      id="simp-chinese-formal"
      name="type"
      value="simp-chinese-formal" />simp-chinese-formal
  </label>

  <label for="simp-chinese-informal">
    <input
      type="radio"
      id="simp-chinese-informal"
      name="type"
      value="simp-chinese-informal" />simp-chinese-informal
  </label>

  <label for="tamil">
    <input type="radio" id="tamil" name="type" value="tamil" />tamil
  </label>

  <label for="telugu">
    <input type="radio" id="telugu" name="type" value="telugu" />telugu
  </label>

  <label for="thai">
    <input type="radio" id="thai" name="type" value="thai" />thai
  </label>

  <label for="tibetan">
    <input type="radio" id="tibetan" name="type" value="tibetan" />tibetan
  </label>

  <label for="trad-chinese-formal">
    <input
      type="radio"
      id="trad-chinese-formal"
      name="type"
      value="trad-chinese-formal" />trad-chinese-formal
  </label>

  <label for="trad-chinese-informal">
    <input
      type="radio"
      id="trad-chinese-informal"
      name="type"
      value="trad-chinese-informal" />trad-chinese-informal
  </label>

  <label for="upper-armenian">
    <input
      type="radio"
      id="upper-armenian"
      name="type"
      value="upper-armenian" />upper-armenian
  </label>

  <label for="disclosure-open">
    <input
      type="radio"
      id="disclosure-open"
      name="type"
      value="disclosure-open" />disclosure-open
  </label>

  <label for="disclosure-closed">
    <input
      type="radio"
      id="disclosure-closed"
      name="type"
      value="disclosure-closed" />disclosure-closed
  </label>

  <label for="-moz-ethiopic-halehame">
    <input
      type="radio"
      id="-moz-ethiopic-halehame"
      name="type"
      value="-moz-ethiopic-halehame" />-moz-ethiopic-halehame
  </label>

  <label for="-moz-ethiopic-halehame-am">
    <input
      type="radio"
      id="-moz-ethiopic-halehame-am"
      name="type"
      value="-moz-ethiopic-halehame-am" />-moz-ethiopic-halehame-am
  </label>

  <label for="ethiopic-halehame-ti-er">
    <input
      type="radio"
      id="ethiopic-halehame-ti-er"
      name="type"
      value="ethiopic-halehame-ti-er" />ethiopic-halehame-ti-er
  </label>

  <label for="ethiopic-halehame-ti-et">
    <input
      type="radio"
      id="ethiopic-halehame-ti-et"
      name="type"
      value="ethiopic-halehame-ti-et" />ethiopic-halehame-ti-et
  </label>

  <label for="hangul">
    <input type="radio" id="hangul" name="type" value="hangul" />hangul
  </label>

  <label for="hangul-consonant">
    <input
      type="radio"
      id="hangul-consonant"
      name="type"
      value="hangul-consonant" />hangul-consonant
  </label>

  <label for="urdu">
    <input type="radio" id="urdu" name="type" value="urdu" />urdu
  </label>

  <label for="-moz-ethiopic-halehame-ti-er">
    <input
      type="radio"
      id="-moz-ethiopic-halehame-ti-er"
      name="type"
      value="-moz-ethiopic-halehame-ti-er" />-moz-ethiopic-halehame-ti-er
  </label>

  <label for="-moz-ethiopic-halehame-ti-et">
    <input
      type="radio"
      id="-moz-ethiopic-halehame-ti-et"
      name="type"
      value="-moz-ethiopic-halehame-ti-et" />-moz-ethiopic-halehame-ti-et
  </label>

  <label for="-moz-hangul">
    <input
      type="radio"
      id="-moz-hangul"
      name="type"
      value="-moz-hangul" />-moz-hangul
  </label>

  <label for="-moz-hangul-consonant">
    <input
      type="radio"
      id="-moz-hangul-consonant"
      name="type"
      value="-moz-hangul-consonant" />-moz-hangul-consonant
  </label>

  <label for="-moz-urdu">
    <input type="radio" id="-moz-urdu" name="type" value="-moz-urdu" />-moz-urdu
  </label>
</div>

ol {
  font-size: 1.2rem;
}

.container {
  column-count: 3;
}

label {
  display: block;
}

input {
  margin: 0.4rem;
}

const container = document.querySelector(".container");
const list = document.querySelector("ol");

container.addEventListener("change", (event) => {
  list.setAttribute("style", `list-style-type: ${event.target.value}`);
});