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CSS

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JavaScript

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HTML 

              
                <div id="content">
  <h1>Timeline Concept</h1>

  <ul class="timeline">
    <li class="event" data-date="12:30 - 1:00pm">
      <h3>Registration</h3>
      <p>Get here on time, it's first come first serve. Be late, get turned away.</p>
      <p>Get here on time, it's first come first serve. Be late, get turned away.</p>
      <p>Get here on time, it's first come first serve. Be late, get turned away.</p>
    </li>
    <li class="event" data-date="2:30 - 4:00pm">
      <h3>Opening Ceremony</h3>
      <p>Get ready for an exciting event, this will kick off in amazing fashion with MOP & Busta Rhymes as an opening show.</p>    
    </li>
    <li class="event" data-date="5:00 - 8:00pm">
      <h3>Main Event</h3>
      <p>This is where it all goes down. You will compete head to head with your friends and rivals. Get ready!</p>    
    </li>
    <li class="event" data-date="8:30 - 9:30pm">
      <h3>Closing Ceremony</h3>
      <p>See how is the victor and who are the losers. The big stage is where the winners bask in their own glory.</p>    
    </li>
  </ul>
</div>
!

CSS 

              
                /* Import */

@import url(https://fonts.googleapis.com/css?family=Source+Sans+Pro:200,300,400,600,700|Oswald:400,300,700);

/* Variables */

@background: #252827;

@color-primary: #4298C3;
@color-light: white;
@spacing: 50px;
@radius: 4px;

@date: 120px;
@dotborder: 4px;
@dot: 11px;
@line: 4px;

@font-title: 'Oswald', sans-serif;
@font-text: 'Source Sans Pro', sans-serif;

/* Base */

body {
  background: @background;
  font-size: 16px;  
}

strong {
  font-weight: 600;
}

h1 {
 font-family: @font-title;
 letter-spacing: 1.5px;
 color: @color-light;  
 font-weight: 100;
 font-size: 2.4em;
}

#content {
  margin-top: @spacing;
  text-align: center;  
}

/* Timeline */

.timeline {
  border-left: @line solid @color-primary;
  border-bottom-right-radius: @radius;
  border-top-right-radius: @radius;    
  background: fade(@color-light, 3%);
  color: fade(white, 80%);
  font-family: @font-text;  
  margin: @spacing auto;  
  letter-spacing: 0.5px;   
  position: relative;
  line-height: 1.4em;
  font-size: 1.03em;   
  padding: @spacing;   
  list-style: none;
  text-align: left;  
  font-weight: 100;  
  max-width: 30%; 
  
  h1, h2, h3 {
   font-family: @font-title;
   letter-spacing: 1.5px;
   font-weight: 100;
   font-size: 1.4em;    
  }
  
  .event {
    border-bottom: 1px dashed fade(@color-light, 10%);
    padding-bottom: (@spacing * 0.5);
    margin-bottom: @spacing;  
    position: relative;

    &:last-of-type { 
      padding-bottom: 0;
      margin-bottom: 0; 
      border: none;      
    }

    &:before, &:after {
      position: absolute;
      display: block;
      top: 0;
    }

    &:before {
      left: (((@date * 0.6) + @spacing + @line + @dot + (@dotborder * 2)) * 1.5) * -1;    
      color: fade(@color-light, 40%);    
      content: attr(data-date);
      text-align: right;
      font-weight: 100;    
      font-size: 0.9em;
      min-width: @date;
    }

    &:after {
      box-shadow: 0 0 0 @dotborder fade(@color-primary,100%);    
      left: (@spacing + @line + (@dot * 0.35)) * -1;        
      background: lighten(@background,5%);    
      border-radius: 50%;  
      height: @dot;
      width: @dot;
      content: "";
      top: 5px;
    }
  }
}
!

JS 

              
                // Simply add more li.class in the HTML
!
999px

Console