Add button at a fixed position

To add a button with a fixed postion on the page:

<style>
.fixRegBtn {
	position: fixed;
	right: 10px;
	top: 64vh;
	z-index: 100;
}


</style>

<div class="fixRegBtn">
    <a href="">
        <div class="aniBtn">Free Register</div>
    </a>
</div>