Ионовый фаб
<ion-fab vertical="top" horizontal="end" slot="fixed">
<ion-fab-button>
<ion-icon name="add"></ion-icon>
</ion-fab-button>
</ion-fab>
DieOver
<ion-fab vertical="top" horizontal="end" slot="fixed">
<ion-fab-button>
<ion-icon name="add"></ion-icon>
</ion-fab-button>
</ion-fab><script type="module" src="https://unpkg.com/ionicons@5.5.2/dist/ionicons/ionicons.esm.js"></script>
<script nomodule src="https://unpkg.com/ionicons@5.5.2/dist/ionicons/ionicons.js"></script><script src="https://unpkg.com/ionicons@5.0.0/dist/ionicons.js"></script>// Ionic iconIonic is a cross platform mobile app development framework. Happy Coding!