<ul>
  <li>Це елемент один</li>
  <li>Це елемент два</li>
  <li>Це елемент три</li>
</ul>
ul { 
  list-style-image: url(https://image.flaticon.com/icons/svg/148/148744.svg);
  font-size: 2em;
  color: #666; 
}

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