@margin: 1rem;

.addNodesMenu {
    .top {
        display: flex;
        justify-content: center;
        margin-bottom: @margin;
    }
    .middle {
        > button:not(:last-child) {
            margin-right: @margin;
        }
    }
    .bottom {
        display: flex;
        justify-content: center;
        margin-top: @margin;
    }
}