.a-btn{
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: block;
    margin: 20px;
    float: left;
    background: #3a6cb4;
    position: relative;
    box-shadow:    
        0px 0px 5px 0px rgba(246, 212, 163, 0.5) inset,
        0px -1px 5px 4px rgba(170, 77, 27, 0.2) inset,
        0px 0px 0px 7px #fff, 
        0px 0px 1px 8px rgba(188, 188, 188, 0.4),
        0px 0px 0px 9px #fff;
    transition: all 0.3s linear;
}
.a-btn span{
    display: table-cell;
    width: 80px;
    height: 80px;
    text-decoration: none;    
    padding: 16px;
    text-align: center;
    vertical-align: middle;
    font-size: 26px;
    color: #fff;
    text-shadow: 0px 1px 1px #7d96ba;
    font-family: "Arvo", "Myriad Pro", "Trebuchet MS", sans-serif;
    transition: all 0.3s linear;
}
.a-btn span:nth-child(1), 
.a-btn span:nth-child(3){
    position: absolute;
    top: 0px;
    left: 0px;
    font-size: 30px;
    line-height: 36px;
    opacity: 0;
}
.a-btn span:nth-child(1){
    background: transparent url(../images/star.png) no-repeat center center;
    opacity: 0.2;
}

.a-btn:hover{
    background: rgba(170, 77, 27, 0.6);
    box-shadow:    
        0px 0px 5px 0px rgba(246, 212, 163, 0.5) inset,
        0px -1px 5px 4px rgba(170, 77, 27, 0.2) inset,
        0px 0px 0px 7px #fff, 
        1px 4px 5px 8px rgba(188, 188, 188, 0.6),
        0px 0px 0px 9px #fff;
}
.a-btn:hover span:nth-child(3){
    opacity: 1; 
}
.a-btn:hover span:nth-child(2){
        transform: scale(0);
    opacity: 0; 
}
.a-btn:hover span:nth-child(1){
    animation: rotate 1s linear; 
}

.a-btn:active{
    box-shadow:    
        0px 0px 5px 0px rgba(246, 212, 163, 0.5) inset,
        0px -1px 5px 4px rgba(170, 77, 27, 0.2) inset,
        0px 0px 0px 7px #fff, 
        0px -1px 0px 8px rgba(188, 188, 188, 0.3),
        0px 0px 0px 10px #fff;
}
.a-btn:active span:nth-child(2){
    color: rgba(170, 77, 27, 0.8);
    text-shadow: 0px 1px 1px rgba(255, 255, 255, 0.6);
}

	
@-webkit-keyframes rotate{
    0% { transform: scale(1) rotate(0);}
    50% { transform: scale(0.5) rotate(180deg);}
    100% { transform: scale(1) rotate(360deg);}
}