bootstrapform-group

The .input-group class is a container to enhance an input by adding an icon, text or a button in front or behind the input field as a help text.

Bootstrap Form Layouts · Wrap labels and form controls in <div class=form-group> (needed for optimum spacing) · Add class .form-control to all textual <input> , ...

Its purpose is to pair form controls with a legend or label, and to provide help text and invalid/valid feedback text, as well as visual (color) contextual ...

The .form-group class is the easiest way to add some structure to forms. It provides a flexible class that encourages proper grouping of labels, controls, ...

The .form-group class is the easiest way to add some structure to forms. It provides a flexible class that encourages proper grouping of labels, controls, ...

Examples and usage guidelines for form control styles, layout options, and custom components for creating a wide variety of forms.

Examples and usage guidelines for form control styles, layout options, and custom components for creating a wide variety of forms. On this page

用於創建各種表單控制樣式、排版選項和自訂元件的範例和使用指南。

使用自定義的樣式，尺寸，focus 狀態等為文本形式控制元件如 、 進行升級。