Timeline CSS with Counters

index.html

<div>
  <p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Adipisci, iste iusto quas eligendi corporis id eius corrupti temporibus velit? Molestias harum voluptatibus veritatis explicabo ut velit deserunt, saepe sit commodi?</p>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Adipisci, iste iusto quas eligendi corporis id eius corrupti temporibus velit? Molestias harum voluptatibus veritatis explicabo ut velit deserunt, saepe sit commodi?</p>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Adipisci, iste iusto quas eligendi corporis id eius corrupti temporibus velit? Molestias harum voluptatibus veritatis explicabo ut velit deserunt, saepe sit commodi?</p>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Adipisci, iste iusto quas eligendi corporis id eius corrupti temporibus velit? Molestias harum voluptatibus veritatis explicabo ut velit deserunt, saepe sit commodi?</p>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Adipisci, iste iusto quas eligendi corporis id eius corrupti temporibus velit? Molestias harum voluptatibus veritatis explicabo ut velit deserunt, saepe sit commodi?</p>
  
</div>

style.css

body { font-family: Helvetica; }

div {
  width: 300px;
  margin: auto;
}

p {
  border-top: 2px dashed;
  border-color: blue !important;
  margin:0; padding: 30px;
  counter-increment: section;
  position: relative;
}



p:nth-child(even):before {
  content: counter(section);
  right: 100%; 
  margin-right: -20px;
  position: absolute;
  border-radius: 50%;
  padding: 10px;
  height: 20px;
  width: 20px;
  background-color: blue;
  text-align:center;
  color: white;
  font-size: 110%;
}

p:nth-child(odd):before {
  content: counter(section);
  left: 100%; 
  margin-left: -20px;
  position: absolute;
  border-radius: 50%;
  padding: 10px;
  height: 20px;
  width: 20px;
  background-color: blue;
  text-align:center;
  color: white;
  font-size: 110%;
}



p:nth-child(even) {
  border-left: 2px dashed;
  border-top-left-radius: 30px;
  border-bottom-left-radius: 30px;
  margin-right: 30px; 
  padding-right: 0;
}

p:nth-child(odd) {
  border-right: 2px dashed;
  border-top-right-radius: 30px;
  border-bottom-right-radius: 30px;
  margin-left: 30px; 
  padding-left: 0;
}

p:first-child {
  border-top: 0;
  border-top-right-radius:0;
  border-top-left-radius:0;
}

p:last-child {
  border-bottom-right-radius:0;
  border-bottom-left-radius:0;
}

timeline-css-with-counters.markdown

Timeline CSS with Counters

A Pen by Jonathan Snook on CodePen.

License.