col-md in bootstrap 5 code example
Example 1: col-md bootstrap 4
<div class="row">
<div class="col-xs-12 col-md-8">.col-xs-12 col-md-8</div>
<div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
</div>
<div class="row">
<div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
<div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
<div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
</div>
<div class="row">
<div class="col-xs-6">.col-xs-6</div>
<div class="col-xs-6">.col-xs-6</div>
</div>
Example 2: .col-6 bootstrap
.col-6{
flex: 0 0 50%;
max-width: 50%;
}