按鈕群組，讓按鈕旁邊可以有副功能鈕

[YamiOdymel]

像 Tumblr 那樣

或 Bootstrap 的 Split Button

跟 Windows 的更新

<div class="ts-split" style="
    display: inline-flex;
    gap: 0.1rem;
">
    <button class="ts-button is-circuxlar is-short" style="
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
">送出</button>
    <button class="ts-button is-circulxar is-icon action" style="
    border-bottom-left-radius: 0;
    border-top-left-radius: 0;
    width: calc(var(--height) * 0.9);
    font-size: var(--ts-font-size-13px);
">
    <span class="ts-icon is-caret-down-icon"></span>
</button>
    <div class="ts-dropdown is-visible is-bottom-right">
        <button class="item">下載</button>
        <button class="item">重新命名</button>
        <button class="item">刪除</button>
    </div>
</div>

[YamiOdymel]