How to do Columns in Bootstrap.

laila.html

<div class="row">
    <div class="col-md-6">
        LEFT SIDE
    </div>
    <div class="col-md-6">
        RIGHT SIDE
    </div>
</div>








<div class="row">
    <div class="col-md-4">
        LEFT
    </div>
    <div class="col-md-4">
        CENTER
    </div>
    <div class="col-md-4">
        RIGHT    
    </div>
</div>










<div class="row">
    <div class="col-md-3">
        1/4 HERE
    </div>
    <div class="col-md-3">
        2/4 HERE
    </div>
    <div class="col-md-3">
        3/4 HERE
    </div>
    <div class="col-md-3">
        4/4 HERE
    </div>
</div>