How to make linked bullet point with css

here is the basic idea

you make three li list under ul or li tag

        <ul>
          <li>item 1</li>
          <li>item 2</li>
          <li>item 3</li>
        </ul>

you make the li tag position: relative; and give some left padding

li {
  height: 40px;
  padding-left: 20px;
  display: flex;
  align-items: center;
  position: relative;
}

you use li::before css property and make left border around.

li::before {
  content: '';
  position: absolute;
  left: -16px;
  border-left: 2px solid black;
  height: 100%;
  width: 1px;
}

Now you use li::after css property and make three circles around it

li::after {
  content: '';
  display: inline-block;
  height: 10px;
  width: 10px;
  border-radius: 50%;
  background-color: blue;
  margin-left: -80px;
}

Now finally you crop the line from first and last list

li:first-child:before {
  top: 20px;
}

li:last-child:before {
  top: -20px;
}

and result:

full code:

html:

  <ul>
          <li>item 1</li>
          <li>item 2</li>
          <li>item 3</li>
        </ul>

css:

li {
  height: 40px;
  padding-left: 20px;
  display: flex;
  align-items: center;
  position: relative;
}

li::before {
  content: '';
  position: absolute;
  left: -16px;
  border-left: 2px solid black;
  height: 100%;
  width: 1px;
}

li::after {
  content: '';
  display: inline-block;
  height: 10px;
  width: 10px;
  border-radius: 50%;
  background-color: blue;
  margin-left: -80px;
}


li:first-child:before {
  top: 20px;
}

li:last-child:before {
  top: -20px;
}

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