How To Add A Vertical Timeline To Your Blogger Website

 Step 1: open a post

Step 2: go to html view

Step 3 : paste below code.

 <div class="timeline-container">
      <div class="event">
        <div class="event-date">Nov 02</div>
        <h2>The Planning Session</h2>
        <div class="timeline-content">
          <p>
            Lorem ipsum dolor sit amet consectetur adipisicing elit. Aperiam
            dolore iste similique mollitia quidem vitae cupiditate? Sint sunt
            vero possimus.
          </p>
        </div>
      </div>
      <div class="event">
        <div class="event-date">Nov 06</div>
        <h2>Designing</h2>
        <div class="timeline-content">
          <p>
            Lorem ipsum dolor sit amet consectetur adipisicing elit. Aperiam
            dolore iste similique mollitia quidem vitae cupiditate? Sint sunt
            vero possimus.
          </p>
        </div>
      </div>
      <div class="event">
        <div class="event-date">Nov 15</div>
        <h2>Testing</h2>
        <div class="timeline-content">
          <p>
            Lorem ipsum dolor sit amet consectetur adipisicing elit. Aperiam
            dolore iste similique mollitia quidem vitae cupiditate? Sint sunt
            vero possimus.
          </p>
        </div>
      </div>
      <div class="event">
        <div class="event-date">Nov 17</div>
        <h2>Deploying The Website</h2>
        <div class="timeline-content">
          <p>
            Lorem ipsum dolor sit amet consectetur adipisicing elit. Aperiam
            dolore iste similique mollitia quidem vitae cupiditate? Sint sunt
            vero possimus.
          </p>
        </div>
      </div>
    </div>

Step 4: open Template

Step 5: Click on Edit HTML

Step 6 : search for </b:skin>

Step 7 Plaste this code above the searched result.

.timeline-container {
  font-family: "Roboto", sans-serif;
  max-width: 500px;
  margin: 0 auto;
  border-left: 4px solid #222;
  padding-left: 25px;
}
.timeline-container h2 {
  font-family: "Pacifico", cursive;
  font-size: 32px;
  margin: 0;
  color: #00272b;
  border-bottom: 1px solid #eee;
}
.timeline-container .event {
  box-shadow: 0px 3px 6px -2px rgba(0, 0, 0, 0.2);
  padding: 32px;
  margin: 48px 0;
  line-height: 2;
  cursor: pointer;
  position: relative;
  transition: all 500ms;
}
.timeline-container .event::before {
  content: "";
  width: 14px;
  height: 14px;
  border: 2px solid #000;
  position: absolute;
  left: -36px;
  border-radius: 50%;
  top: 50%;
  transform: translateY(-50%);
  background: #fff;
  transition: all 500ms;
}
.timeline-container .event:hover {
  box-shadow: 1px 6px 16px -1px rgba(0, 0, 0, 0.1);
}
.timeline-container .event:hover::before {
  background: red;
}
.timeline-container .event .event-date {
  position: absolute;
  left: -95px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: bold;
}
@media (max-width: 700px) {
  .timeline-container {
    max-width: 100%;
    margin-left: 8px;
  }
  .timeline-container .event .event-date {
    position: static;
    margin-bottom: -20px;
  }
}