.control.button {
    min-width: 32px;
    min-height: 32px;
    border: none;
    background-color: rgba(0, 0, 0, .05);
    border-radius: 3px;
    transition: background-color .2s;
    box-sizing: border-box;
    overflow: hidden;
    display: flex;
    flex-direction: row;
    align-items: center;
    flex: none;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 20px 20px
}

.control.button:hover {
    background-color: rgba(0, 0, 0, .15);
}

.control.button:active {
    background-color: rgba(0, 0, 0, .2);
}