.st0 {opacity:0; fill:#D00}
.st0:hover {opacity:0.4; cursor: pointer}

.text-center {
    text-align: center;
}

button a {
    color: #fff;
}

#activity {
    margin: 50px auto 0px auto;
    max-width: 500px;
    text-align: center;
}

#activity button {
    margin: 30px 0px 0px 0px;
    padding: 10px 15px 10px 15px;
}

path {cursor: pointer;}
path:hover {opacity: 0.6}
path.st10:hover {opacity: 0.65; cursor: default;}