Circle button with 3d shadow and hover effect Bootstrap

Circle button with 3d shadow and hover effect Bootstrap

HTML:

<div class="container">
<div class="row">
        <div class="col-md-12">
   <button class="btn btn-default orange-circle-button" href="">Read<br />more<br /><span class="orange-circle-greater-than">></span></button>

        </div>  
</div>
</div>

CSS:

body {
 font-size: 18px;  
}
.orange-circle-button {
box-shadow: 2px 4px 0 2px rgba(0,0,0,0.1);
border: .5em solid #E84D0E;
font-size: 1em;
line-height: 1.1em;
color: #ffffff;
background-color: #e84d0e;
margin: auto;
border-radius: 50%;
height: 7em;
width: 7em;
position: relative;
}
.orange-circle-button:hover {
color:#ffffff;
    background-color: #e84d0e;
text-decoration: none;
border-color: #ff7536;

}
.orange-circle-button:visited {
color:#ffffff;
    background-color: #e84d0e;
text-decoration: none;

}
.orange-circle-link-greater-than {
    font-size: 1em;
}