Vertical center align for a button in panel header with Bootstrap - html

Question

I'm working on a Bootstrap 4 HTML page. I put a button in a panel header:
I need to put the button (and the title) in the middle of the panel header. How can I achieve this goal?
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="stylesheet" />
<div class="container p-4 ">
<div class="card">
<div class="card-header">
<p class="float-left display-4">Administrator</p>
<a href="#" class="btn btn-primary float-right" style="align-items: center" routerLink="../list" role="button">
<i class="fa fa-arrow-left"></i> Indietro</a>
</div>
<div class="card-body">
<form>
<div class="form-group">
<label for="email">Email:</label>
<input type="email" class="form-control" id="email">
</div>
<div class="form-group">
<label for="pwd">Password:</label>
<input type="password" class="form-control" id="pwd">
</div>
<div class="form-group">
<label for="displayName">Display name:</label>
<input type="displayName" class="form-control" id="displayName">
</div>
<button type="submit" class="btn btn-primary float-right">Salva</button>
</form>
</div>
</div>
</div>
Thanks

Answer 1

Try using display: flex; for your card header which is available in bootstrap and also instead of using float-right you can use ml-auto to move the button to the right (With the use of flex there is no need to use float properties). Hope this code helps
<!--
Bootstrap docs: https://getbootstrap.com/docs
-->
<div class="container p-4 ">
<div class="card">
<div class="card-header d-flex flex-row align-items-center">
<p class="float-left display-4">Administrator</p>
<a href="#" class="btn btn-primary ml-auto" style="align-items: center" routerLink="../list" role="button">
<i class="fa fa-arrow-left"></i> Indietro</a></div>
<div class="card-body">
<form>
<div class="form-group">
<label for="email">Email:</label>
<input type="email" class="form-control" id="email">
</div>
<div class="form-group">
<label for="pwd">Password:</label>
<input type="password" class="form-control" id="pwd">
</div>
<div class="form-group">
<label for="displayName">Display name:</label>
<input type="displayName" class="form-control" id="displayName">
</div>
<button type="submit" class="btn btn-primary float-right">Salva</button>
</form>
</div>
</div>
</div>

Answer 2

Just add display flex to your card-header class, then align-items: center
.card-header {
padding: .75rem 1.25rem;
margin-bottom: 0;
background-color: rgba(0,0,0,.03);
border-bottom: 1px solid rgba(0,0,0,.125);
display: flex;
justify-content: space-between;
align-items: center;
}