Grid System - Mobile, Tablet, Desktops

We have seen an example for Medium and Large Device. Now let us take it to another level, where we would want to change it for the extra small phone size as well. Say we want to add the option for the columns to be split 75%/25% for tablets, we go like this −

<div class = "col-sm-3 col-md-6 col-lg-4">....</div>
<div class = "col-sm-9 col-md-6 col-lg-8">....</div>

Now this gives us 3 different column layouts at each point. On a phone, it will be 75% on the left, and 25% on the right. On a tablet, it will be 50%/50% again, and on a large viewport, it will be 33%/66%. three different layouts for each of the three responsive sizes. Check it out in the following example. (Here styling for each column is used. You can avoid it.)

<div class = "container">
   <h1>Hello, world!</h1>

   <div class = "row">
      <div class = "col-sm-3 col-md-6 col-lg-8" style = "background-color: #dedef8; 
         box-shadow: inset 1px -1px 1px #444, inset -1px 1px 1px #444;">
         
         <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do 
            eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut 
            enim ad minim veniam, quis nostrud exercitation ullamco laboris 
            nisi ut aliquip ex ea commodo consequat.</p>

         <p>Sed ut perspiciatis unde omnis iste natus error sit voluptatem 
            accusantium doloremque laudantium, totam rem aperiam, eaque ipsa 
            quae ab illo inventore veritatis et quasi architecto beatae vitae 
            dicta sunt explicabo.</p>
      </div>

      <div class = "col-sm-9 col-md-6 col-lg-4" style = "background-color: #dedef8;
         box-shadow: inset 1px -1px 1px #444, inset -1px 1px 1px #444;">
         
         <p>Sed ut perspiciatis unde omnis iste natus error sit voluptatem 
            accusantium doloremque laudantium.</p>

         <p>Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, 
            consectetur, adipisci velit, sed quia non numquam eius modi tempora 
            incidunt ut labore et dolore magnam aliquam quaerat voluptatem.</p>
      </div>
      
   </div>
</div>

This will produce the following result −