(Event Detail) Add a same button next at bottom of Event Detail

#1. Use this code to Code Injection – Footer

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.0/jquery.min.js"></script>
<script>
$(document).ready(function(){
    $('<a class="event-custom-button" href="https://google.com">Subscribe Me</a>').insertBefore('.eventitem-content-footer');
});
</script>
<style>
a.event-custom-button {
    border: 2px solid #000;
    padding: 10px 20px;
    color: #000;
    font-size: 18px;
}
</style>

#2. Result