border-style

border-style

Устанавливает стиль границы вокруг элемента. Допустимо задавать индивидуальные стили для разных сторон элемента.

Синтаксис

border-style: [none | hidden | dotted | dashed | solid | double | groove | ridge | inset | outset] | inherit

Значения

Для управления видом границы предоставляется несколько значений свойства border-style . Вид зависит от используемого браузера и заданной толщины границы. В табл. 1 приведены названия стилей и получаемая рамка при разных значениях толщины — 1, 3, 5 и 7 пикселов.

Кроме перечисленных в таблице значений используются следующие ключевые слова.

none Не отображает границу и ее толщина ( border-width ) задается нулевой. hidden Имеет тот же эффект, что и none за исключением применения border-style к ячейкам таблицы, у которой значение свойства border-collapse установлено как collapse . В этом случае вокруг ячейки граница не будет отображаться вообще. inherit Наследует значение родителя.

Разрешается использовать одно, два, три или четыре значения, разделяя их между собой пробелом. Эффект зависит от количества и указан в табл. 2.

Табл. 2. Зависимость результата использования от числа значений

Число значений	Результат
1	Стиль границы будет задан для всех сторон элемента.
2	Первое значение устанавливает стиль верхней и нижней границы, второе — левой и правой.
3	Первое значение задает стиль верхней границы, второе — одновременно левой и правой границы, а третье — нижней границы.
4	Поочередно устанавливается стиль верхней, правой, нижней и левой границы.

HTML5 CSS2.1 IE Cr Op Sa Fx

       
Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diem nonummy nibh euismod tincidunt ut lacreet dolore magna aliguam erat volutpat.
  

Результат данного примера показан на рис. 1.

Рис. 1. Применение свойства border-style

Объектная модель

[window.]document.getElementById(» elementID «).style.borderStyle

Браузеры

Браузер Internet Explorer до шестой версии включительно при толщине границы 1px отображает dotted как dashed . При толщине 2px и выше значение dotted работает корректно. Эта ошибка исправлена в IE7, но только для всех границ толщиной 1px. Если одна из границ блока имеет толщину 2px и выше, то в IE7 значение dotted превращается в dashed .

Internet Explorer до версии 7.0 включительно не поддерживает значения hidden и inherit .

Стиль границы в разных браузерах может несколько различаться при использовании значений groove , ridge , inset или outset .

Источник

border-style

The border-style shorthand CSS property sets the line style for all four sides of an element’s border.

Try it

Constituent properties

This property is a shorthand for the following CSS properties:

Syntax

/* Keyword values */ border-style: none; border-style: hidden; border-style: dotted; border-style: dashed; border-style: solid; border-style: double; border-style: groove; border-style: ridge; border-style: inset; border-style: outset; /* top and bottom | left and right */ border-style: dotted solid; /* top | left and right | bottom */ border-style: hidden double dashed; /* top | right | bottom | left */ border-style: none solid dotted dashed; /* Global values */ border-style: inherit; border-style: initial; border-style: revert; border-style: revert-layer; border-style: unset; 

The border-style property may be specified using one, two, three, or four values.

• When one value is specified, it applies the same style to all four sides.
• When two values are specified, the first style applies to the top and bottom, the second to the left and right.
• When three values are specified, the first style applies to the top, the second to the left and right, the third to the bottom.
• When four values are specified, the styles apply to the top, right, bottom, and left in that order (clockwise).

Each value is a keyword chosen from the list below.

Values

Describes the style of the border. It can have the following values:

Like the hidden keyword, displays no border. Unless a background-image is set, the computed value of the same side’s border-width will be 0 , even if the specified value is something else. In the case of table cell and border collapsing, the none value has the lowest priority: if any other conflicting border is set, it will be displayed.

Like the none keyword, displays no border. Unless a background-image is set, the computed value of the same side’s border-width will be 0 , even if the specified value is something else. In the case of table cell and border collapsing, the hidden value has the highest priority: if any other conflicting border is set, it won’t be displayed.

Displays a series of rounded dots. The spacing of the dots is not defined by the specification and is implementation-specific. The radius of the dots is half the computed value of the same side’s border-width .

Displays a series of short square-ended dashes or line segments. The exact size and length of the segments are not defined by the specification and are implementation-specific.

Displays a single, straight, solid line.

Displays two straight lines that add up to the pixel size defined by border-width .

Displays a border with a carved appearance. It is the opposite of ridge .

Displays a border with an extruded appearance. It is the opposite of groove .

Displays a border that makes the element appear embedded. It is the opposite of outset . When applied to a table cell with border-collapse set to collapsed , this value behaves like ridge .

Displays a border that makes the element appear embossed. It is the opposite of inset . When applied to a table cell with border-collapse set to collapsed , this value behaves like groove .

Formal definition

• border-top-style : none
• border-right-style : none
• border-bottom-style : none
• border-left-style : none

• border-bottom-style : as specified
• border-left-style : as specified
• border-right-style : as specified
• border-top-style : as specified

Formal syntax

border-style =

=
none |
hidden |
dotted |
dashed |
solid |
double |
groove |
ridge |
inset |
outset

Examples

All property values

Here is an example of all the property values.

HTML

pre class="b1">nonepre> pre class="b2">hiddenpre> pre class="b3">dottedpre> pre class="b4">dashedpre> pre class="b5">solidpre> pre class="b6">doublepre> pre class="b7">groovepre> pre class="b8">ridgepre> pre class="b9">insetpre> pre class="b10">outsetpre> 

CSS

pre  height: 80px; width: 120px; margin: 20px; padding: 20px; display: inline-block; background-color: palegreen; border-width: 5px; box-sizing: border-box; > /* border-style example classes */ .b1  border-style: none; > .b2  border-style: hidden; > .b3  border-style: dotted; > .b4  border-style: dashed; > .b5  border-style: solid; > .b6  border-style: double; > .b7  border-style: groove; > .b8  border-style: ridge; > .b9  border-style: inset; > .b10  border-style: outset; > 

Result

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 Jun 30, 2023 by MDN contributors.

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Источник

border

The border shorthand CSS property sets an element’s border. It sets the values of border-width , border-style , and border-color .

Try it

Constituent properties

This property is a shorthand for the following CSS properties:

Syntax

/* style */ border: solid; /* width | style */ border: 2px dotted; /* style | color */ border: outset #f33; /* width | style | color */ border: medium dashed green; /* Global values */ border: inherit; border: initial; border: revert; border: revert-layer; border: unset; 

The border property may be specified using one, two, or three of the values listed below. The order of the values does not matter.

Note: The border will be invisible if its style is not defined. This is because the style defaults to none .

Values

Sets the thickness of the border. Defaults to medium if absent. See border-width .

Sets the style of the border. Defaults to none if absent. See border-style .

Sets the color of the border. Defaults to currentcolor if absent. See border-color .

Description

As with all shorthand properties, any omitted sub-values will be set to their initial value. Importantly, border cannot be used to specify a custom value for border-image , but instead sets it to its initial value, i.e., none .

The border shorthand is especially useful when you want all four borders to be the same. To make them different from each other, however, you can use the longhand border-width , border-style , and border-color properties, which accept different values for each side. Alternatively, you can target one border at a time with the physical (e.g., border-top ) and logical (e.g., border-block-start ) border properties.

Borders vs. outlines

Borders and outlines are very similar. However, outlines differ from borders in the following ways:

• Outlines never take up space, as they are drawn outside of an element’s content.
• According to the spec, outlines don’t have to be rectangular, although they usually are.

Formal definition

• border-width : as each of the properties of the shorthand:
  • border-top-width : medium
  • border-right-width : medium
  • border-bottom-width : medium
  • border-left-width : medium
  • border-top-style : none
  • border-right-style : none
  • border-bottom-style : none
  • border-left-style : none
  • border-top-color : currentcolor
  • border-right-color : currentcolor
  • border-bottom-color : currentcolor
  • border-left-color : currentcolor
  • border-width : as each of the properties of the shorthand:
    • border-bottom-width : the absolute length or 0 if border-bottom-style is none or hidden
    • border-left-width : the absolute length or 0 if border-left-style is none or hidden
    • border-right-width : the absolute length or 0 if border-right-style is none or hidden
    • border-top-width : the absolute length or 0 if border-top-style is none or hidden
    • border-bottom-style : as specified
    • border-left-style : as specified
    • border-right-style : as specified
    • border-top-style : as specified
    • border-bottom-color : computed color
    • border-left-color : computed color
    • border-right-color : computed color
    • border-top-color : computed color
    • border-color : as each of the properties of the shorthand:
      • border-bottom-color : a color
      • border-left-color : a color
      • border-right-color : a color
      • border-top-color : a color
      • border-bottom-width : a length
      • border-left-width : a length
      • border-right-width : a length
      • border-top-width : a length

      Formal syntax

      border =
      ||
      ||

      =
      |
      thin |
      medium |
      thick

      =
      none |
      hidden |
      dotted |
      dashed |
      solid |
      double |
      groove |
      ridge |
      inset |
      outset

      Examples

      Setting a pink outset border

      HTML

      div>I have a border, an outline, and a box shadow! Amazing, isn't it?div> 

      CSS

      div  border: 0.5rem outset pink; outline: 0.5rem solid khaki; box-shadow: 0 0 0 2rem skyblue; border-radius: 12px; font: bold 1rem sans-serif; margin: 2rem; padding: 1rem; outline-offset: 0.5rem; > 

      Result

      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 Jul 18, 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