Html-input-tag
提供：Dev Guides
HTML-<input>タグ
説明
HTMLの<input>タグは、入力要素（ユーザーがデータを入力できるようにするコントロール）を宣言するためにフォーム内で使用されます。
例
<!DOCTYPE html>
<html>
<head>
<title>HTML input Tag</title>
</head>
<body>
<form action = "/cgi-bin/hello_get.cgi" method = "get">
First name:
<input type = "text" name = "first_name" value = "" maxlength = "100"/>
<br/>
Last name:
<input type = "text" name = "last_name" value = "" maxlength = "100"/>
<input type = "submit" value = "Submit"/>
</form>
</body>
</html>これは、次の結果を生成します-
グローバル属性
このタグは、− link：/html/html_attributes_reference [HTML属性リファレンス]で説明されているすべてのグローバル属性をサポートします
特定の属性
HTML <input>タグは、次の追加属性もサポートしています-
| Attribute | Value | Description |
|---|---|---|
| accept | content types | Specifies a comma-separated list of content types that the server accepts. |
| align | left right top middle bottom | Deprecated − Defines the alignment of content |
| alt | text | This specifies text to be used in case the browser/user agent can’t render the input control. |
| autocomplete html-5 | onoff | Specifies for enabling or disabling of autocomplete in <input> element |
| autofocus html-5 | autofocus | pecifies that <input> element should automatically get focus when the page loads |
| checked | checked | If type = "radio" or type = "checkbox" it will already be selected when the page loads. |
| disabled | disabled | Disables the input control. The button won’t accept changes from the user. It also cannot receive focus and will be skipped when tabbing. |
| formhtml-5 | form_id | Specifies one or more forms |
| formaction html-5 | URL | Specifies the URL of the file that will process the input control when the form is submitted |
| formenctypehtml-5 |
application/x-www-form-urlencoded マルチパート/フォームデータ テキスト/プレーン |
Specifies how the form-data should be encoded when submitting it to the serve |
| formmethod html-5 | post get | Defines the HTTP method for sending data to the action URL |
| formnovalidate html-5 | formnovalidate | Defines that form elements should not be validated when submitted |
| formtarget html-5 | _blank _self _parent _top | Specifies the target where the response will be display that is received after submitting the form |
| height html-5 | pixels | Specifies the height |
| list html-5 | datalist_id | Specifies the <datalist> element that contains pre-defined options for an <input> element |
| max html-5 | autofocus | Specifies the maximum value. |
| maxlength | number | Defines the maximum number of characters allowed in a text field |
| min html-5 | number | Specifies the minimum value. |
| multiple html-5 | multiple | Specifies that a user can enter multiple values |
| name | text | Assigns a name to the input control. |
| pattern html-5 | regexp | Specifies a regular expression that an <input> element’s value is checked against |
| placeholder html-5 | text | Specifies a short hint that describes the expected value. |
| readonly | readonly | Sets the input control to read-only. It won’t allow the user to change the value. The control however, can receive focus and are included when tabbing through the form controls. |
| required html-5 | required | Specifies that an input field must be filled out before submitting the form |
| size | number | Specifies the width of the control. If type = "text" or type = "password" this refers to the width in characters. Otherwise it’s in pixels. |
| src | URL | Defines the URL of the image to display. Used only for type = "image". |
| step html-5 | number | Specifies the legal number intervals for an input field |
| type | button checkboxcolor date datetime datetime-local email file hidden image month number password radio range reset search submit tel text time url week | Specifies the type of control. |
| value | text | Specifies the intial value for the control.If type = "checkbox" or type = "radio" this attribute is required. |
| width html-5 | pixels | Specifies the width |
イベント属性
このタグは、link：/html/html_events_reference [HTMLイベントリファレンス]で説明されているすべてのイベント属性をサポートしています。
ブラウザのサポート
| Chrome | Firefox | IE | Opera | Safari | Android |
|---|---|---|---|---|---|
| Yes | Yes | Yes | Yes | Yes | Yes |
