focus

:focus¶

Псевдо-класс :focus применяется, когда элемент получает фокус, либо при выборе его пользователем при помощи клавиатуры, либо активацией его мышью (например, при вводе формы).

Синтаксис¶

/* Selects any when focused */ input:focus  color: red; > 

Значения¶

Примечание. Этот псевдокласс применяется только к самому сфокусированному элементу. Используйте :focus-within , если вы хотите выбрать элемент, содержащий сфокусированный элемент.

Спецификации¶

Описание и примеры¶

input class="red-input" value="I'll be red when focused." />br /> input class="blue-input" value="I'll be blue when focused." /> 

.red-input:focus  background: yellow; color: red; > .blue-input:focus  background: yellow; color: blue; > 

Источник

:focus

The :focus CSS pseudo-class represents an element (such as a form input) that has received focus. It is generally triggered when the user clicks or taps on an element or selects it with the keyboard’s Tab key.

Try it

Note: This pseudo-class applies only to the focused element itself. Use :focus-within if you want to select an element that contains a focused element.

Syntax

Examples

HTML

div>input class="red-input" value="I'll be red when focused." />div> div>input class="blue-input" value="I'll be blue when focused." />div> 

CSS

.red-input:focus  background: yellow; color: red; > .blue-input:focus  background: yellow; color: blue; > 

Result

Accessibility concerns

Make sure the visual focus indicator can be seen by people with low vision. This will also benefit anyone use a screen in a brightly lit space (like outside in the sun). WCAG 2.1 SC 1.4.11 Non-Text Contrast requires that the visual focus indicator be at least 3 to 1.

:focus

Never just remove the focus outline (visible focus indicator) without replacing it with a focus outline that will pass WCAG 2.1 SC 1.4.11 Non-Text Contrast.

Specifications

Browser compatibility

BCD tables only load in the browser

See also

Found a content problem with this page?

This page was last modified on Feb 21, 2023 by MDN contributors.

Your blueprint for a better internet.

MDN

Support

Our communities

Developers

Visit Mozilla Corporation’s not-for-profit parent, the Mozilla Foundation.
Portions of this content are ©1998– 2023 by individual mozilla.org contributors. Content available under a Creative Commons license.

Источник

CSS :focus Selector

The :focus selector is used to select the element that has focus.

Tip: The :focus selector is allowed on elements that accept keyboard events or other user inputs.

Browser Support

The numbers in the table specifies the first browser version that fully supports the selector.

CSS Syntax

More Examples

Example

When an gets focus, gradually change the width from 100px to 250px:

input[type=text] <
width: 100px;
transition: ease-in-out, width .35s ease-in-out;
>

input[type=text]:focus width: 250px;
>

Related Pages

COLOR PICKER

Report Error

If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:

Thank You For Helping Us!

Your message has been sent to W3Schools.

Top Tutorials

Top References

Top Examples

Get Certified

W3Schools is optimized for learning and training. Examples might be simplified to improve reading and learning. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. While using W3Schools, you agree to have read and accepted our terms of use, cookie and privacy policy.

Источник

CSS Forms

The look of an HTML form can be greatly improved with CSS:

Styling Input Fields

Use the width property to determine the width of the input field:

Example

The example above applies to all elements. If you only want to style a specific input type, you can use attribute selectors:

• input[type=text] — will only select text fields
• input[type=password] — will only select password fields
• input[type=number] — will only select number fields
• etc..

Padded Inputs

Use the padding property to add space inside the text field.

Tip: When you have many inputs after each other, you might also want to add some margin , to add more space outside of them:

Example

Note that we have set the box-sizing property to border-box . This makes sure that the padding and eventually borders are included in the total width and height of the elements.
Read more about the box-sizing property in our CSS Box Sizing chapter.

Bordered Inputs

Use the border property to change the border size and color, and use the border-radius property to add rounded corners:

Example

If you only want a bottom border, use the border-bottom property:

Example

Colored Inputs

Use the background-color property to add a background color to the input, and the color property to change the text color:

Example

Focused Inputs

By default, some browsers will add a blue outline around the input when it gets focus (clicked on). You can remove this behavior by adding outline: none; to the input.

Use the :focus selector to do something with the input field when it gets focus:

Example

Example

Input with icon/image

If you want an icon inside the input, use the background-image property and position it with the background-position property. Also notice that we add a large left padding to reserve the space of the icon:

Example

input[type=text] <
background-color: white;
background-image: url(‘searchicon.png’);
background-position: 10px 10px;
background-repeat: no-repeat;
padding-left: 40px;
>

Animated Search Input

In this example we use the CSS transition property to animate the width of the search input when it gets focus. You will learn more about the transition property later, in our CSS Transitions chapter.

Example

input[type=text] <
transition: width 0.4s ease-in-out;
>

input[type=text]:focus width: 100%;
>

Styling Textareas

Tip: Use the resize property to prevent textareas from being resized (disable the «grabber» in the bottom right corner):

Example

textarea <
width: 100%;
height: 150px;
padding: 12px 20px;
box-sizing: border-box;
border: 2px solid #ccc;
border-radius: 4px;
background-color: #f8f8f8;
resize: none;
>

Styling Select Menus

Example

select <
width: 100%;
padding: 16px 20px;
border: none;
border-radius: 4px;
background-color: #f1f1f1;
>

Styling Input Buttons

Example

input[type=button], input[type=submit], input[type=reset] <
background-color: #04AA6D;
border: none;
color: white;
padding: 16px 32px;
text-decoration: none;
margin: 4px 2px;
cursor: pointer;
>

/* Tip: use width: 100% for full-width buttons */

For more information about how to style buttons with CSS, read our CSS Buttons Tutorial.

Responsive Form

Resize the browser window to see the effect. When the screen is less than 600px wide, make the two columns stack on top of each other instead of next to each other.

Advanced: The following example uses media queries to create a responsive form. You will learn more about this in a later chapter.

Aligned Form

An example of how to style labels together with inputs to create a horizontal aligned form:

Источник

Псевдокласс :focus

Псевдокласс :focus определяет стиль для элемента получающего фокус. Например, им может быть текстовое поле формы, в которое устанавливается курсор.

Синтаксис

Значения

HTML5 CSS2.1 IE Cr Op Sa Fx

Результат данного примера показан на рис. 1. При получении фокуса текстовое поле меняет цвет фона и цвет границы.

Рис. 1. Результат использования псевдокласса :focus

Браузеры

Chrome не добавляет стиль для селектора a , чтобы заставить его понимать правило a:focus , добавьте к тегу атрибут tabindex .

CSS по теме

Источник