Question about Bootstrap Grid Offset: How to use it effectively?

Recently delving into Bootstrap, I encountered an interesting issue.

<div class="container row">
    <div id="page" class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
        <div id="header"></div>

        <div id="article"></div>

        <div id="footer"></div>

    </div>
    <div class="col-lg-2 col-md-1"></div>

While referencing the Bootstrap documentation, I noticed that the last div may not be required. doc:

<div class="row">
  <div class="col-md-6 col-md-offset-3">.col-md-6 .col-md-offset-3</div>
</div>

According to the example given, it seems like you don't always need to include every column in a row. But my math skills tell me otherwise - 6 + 3 should equal 9, leaving 3 columns unaccounted for. This raises a concern for me as I want to ensure I fully understand this concept before moving forward. If columns are missing within a row, will Bootstrap automatically adjust and add them? Or am I setting myself up for unexpected issues down the line?

Prior to this, I was working with the 1200px grid system where I had to meticulously place and count each column. The flexibility of Bootstrap is intriguing but also a bit perplexing in this regard.

Answer №1

When 6+3=9, the remaining columns/grids (3 columns) will stay empty. This won't cause any bugs; it simply centers the DIV with the class col-md-offset-3 by shifting it 3 columns to the left and leaving 3 columns on the right empty, resulting in perfect center alignment.

I hope this explanation provides some clarity. Thank you!

Answer №2

Tip: Avoid nesting class container and row in the same div element.

Solution: Starting a new row will reset the count to zero.

Consider placing each section in its own container for better organization.

<div class='container'><!--main container-->
  <div class='row'><!--first row-->
     <div class='col-md-4 col-md-offset-3'><!--columns with offset-->
     </div>
  </div>
  <div class='row'>
     <!--other columns start counting from zero in a new row-->
  </div>
</div>

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