<!--You can use attribute (data-bs-toggle='popover') through make popover on buttons.-->
<div class="card-body common-flex">
<button class="btn btn-primary example-popover mb-0 me-0" type="button" data-bs-toggle="popover" title="Basic Popover" data-bs-content="If the package restore doesn't help, you can look at the Output window in the Visual Studio.">Hurry Up! </button>
<button class="example-popover btn btn-success mb-0 me-0" type="button" data-bs-trigger="hover" data-container="body" data-bs-toggle="popover" data-bs-placement="bottom" title="Hover Popover" data-offset="-20px -20px" data-bs-content=" Several utility instruction sets have been featured in the Bootstrap 4 to promote very easy learning for beginners in the business of web building.">Hover tooltip</button>
<a class="btn btn-lg btn-secondary" tabindex="0" role="button" data-bs-toggle="popover" data-bs-trigger="focus" title="Dismissible popover" data-bs-title="Dismissible popover" data-bs-content="You are able to even develop and suggest improvements to the Bootstrap 4 before its final version is delivered.">Dismissible popover</a>

<!--You can use attribute (data-bs-toggle='popover') through make popover on buttons(top/bottom/left/right).-->
<button class="example-popover btn btn-warning mb-0 me-0" type="button" data-container="body" data-bs-toggle="popover" data-bs-placement="top" title="Popover On Top" data-bs-content="Popovers need the tooltip plugin considering that a dependency.">Popover on top</button>
<button class="example-popover btn btn-danger mb-0 me-0" type="button" data-container="body" data-bs-toggle="popover" data-bs-placement="right" title="Popover On Right" data-bs-content="Popovers are opt-in for effectiveness causes, in this way you have to initialize them yourself.">Popover on right</button>
<button class="example-popover btn btn-info mb-0 me-0" type="button" data-container="body" data-bs-toggle="popover" data-bs-placement="bottom" title="Popover On Bottom" data-bs-content="Identify container:to evade rendering problems in more complex components (like Bootstrap input groups, button groups, etc).">Popover on bottom</button>
<button class="example-popover btn btn-dark mb-0 me-0" type="button" data-container="body" data-bs-toggle="popover" data-bs-placement="left" title="Popover On Left" data-bs-content="Popovers are opt-in for effectiveness causes, in this way you have to initialize them yourself.">Popover on left</button>

<!--You can use badge-* class through change the colors of badges (primary/secondary/success...).-->
<span class="badge badge-primary">Primary</span>
<span class="badge badge-secondary">Secondary</span>
<span class="badge badge-success">Success</span>
<span class="badge badge-info">Info</span>
<span class="badge badge-warning text-dark">Warning</span>
<span class="badge badge-danger">Danger</span>
<span class="badge badge-light text-dark">Light</span>
<span class="badge badge-dark tag-pills-sm-mb">Dark</span>