.cbe-custom-button {
    padding: 10px 20px;
    display: inline-block;
    border-radius: 4px;
    text-decoration: none;
    margin: 5px;
    font-weight: bold;
}
.cbe-start { text-align: left; }
.cbe-center { text-align: center; }
.cbe-end { text-align: right; }