The following is the code I'm using. I'd like both buttons to be white in colour, but can't seem to get that to work. I'm customizing a bloom (by divi) popup on wordpress.
<div>
<style>
.btn-group button {
background-color: #4CAF50;
border: 1px solid green;
color: #FFFFFF;
cursor: pointer;
float: left; }
</style>
<body>
<div class="btn-group" style="width:100%">
<button style="width:50%"><a href="----">In-Store Visit</a></button>
<button style="width:50%"><a href="-----">Eye-Exam</a></button>
</div>
</div>
</body>
</div>