.fab {
    position: fixed;
    bottom: 50px;
    right: 20px;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    background: #2BB930;
    box-shadow: 1px 2px 4px grey;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.fab:hover {
    cursor: pointer;
}
.fab-active img {
    transform: rotate(270deg);
    width: 40%;
}

.item {
    overflow: hidden;
    border-radius: 50%;
    transition: 0.4s ease-in;
    width: 44px;
    height: 44px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    
}

.item:hover {
    cursor: pointer;
}
.item:hover img {
    transform: rotate(360deg);
    transition: all 0.5s;
}