Add border-color property in CSS class. See below code:
.circle {
width: 22px;
height: 22px;
background: #FF8C00;
-moz-border-radius: 14px;
-webkit-border-radius: 14px;
border-radius: 14px;
border-color: red;
-webkit-text-stroke-width: 2px;
-webkit-text-stroke-color: #191970;
-webkit-border-image:blue;
font-size:0.95em;
}