.task-button {
    border-color: var(--border-color-button);
    border-radius: 6px;
}
.task-button-list {
    background-color: var(--color-white);
}

    .task-button-list a:first-child {
        border-bottom-left-radius: 0;
        border-bottom-right-radius: 0;
    }

    .task-button-list a:last-child {
        border-top-left-radius: 0;
        border-top-right-radius: 0;
        border-top: none;
    }

    .task-button-list a:not(:first-child):not(:last-child)
    {
        border-radius: 0;
        border-top: none;
    }

    .task-button-list a:only-child {
        border-radius: 6px;
        border-top: 1px solid var(--border-color-button);
    }