bootstrap 4 button small height code example

Example 1: button max width bootstrap

<button type="button" class="btn btn-primary btn-block">Button Name</button>

Example 2: bootstrap button bigger

<button type="button" class="btn btn-primary btn-lg">Large button</button>
<button type="button" class="btn btn-secondary btn-lg">Large button</button>

Example 3: bootstrap button full width

Create block level buttons—those that span the full width of a parent—by adding .btn-block.