.b2-icon {
    display: block;
    flex-shrink: 0;
}

.b2-big-icon-btn.ant-btn,
.b2-big-icon-btn {
    width: 32px;
    height: 32px;
    min-width: 32px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.b2-big-icon-btn.ant-btn > span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}