.spoiler {
    display:inline-block;
    width:30px;
    height:30px;
    line-height:10px;
    border: 2px solid #f5f5f5;
    border-radius: 50%;
    color:#f5f5f5;
    text-align:center;
    text-decoration:none;
    background: #BD5D38;
    box-shadow: 0 0 3px gray;
    font-size:20px;
    font-weight:bold;
    margin-bottom: 10px;
}
.spoiler:hover {
    background: #fd7e14;
}

.spoiler:focus {outline:0;}