CSS border-inline-end-width Property

The CSS border-inline-end-width property is a useful tool in CSS that allows web developers to control the width of an element’s end border in a layout that supports inline directionality (left-to-right and right-to-left). This property can be particularly advantageous for developers working with internationalization or needing to accommodate different writing directions in their UI designs.

Definition

The border-inline-end-width property specifically defines the width of the border at the end of the inline axis. This means that in a left-to-right layout, it alters the width of the right border, while in a right-to-left layout, it modifies the left border. This property is part of the CSS Logical Properties and Values specification.

Default Value

The default value for the border-inline-end-width property is medium. This means that if no specific width is defined, the space occupied by the border will adhere to a standard medium thickness.

Syntax

The syntax of the border-inline-end-width property is straightforward:

border-inline-end-width: value;

Where value can be specified as:

• Length (e.g., 1px, 2em)
• Keyword (e.g., thin, medium, thick)
• Initial (sets the property to its default value)
• inherit (inherits the value from the parent element)
• unset (resets the property to its inherited or initial value)

Browser Compatibility

The border-inline-end-width property is supported in most modern browsers. However, it is important to check compatibility with different browser versions, especially when working with legacy systems. Here’s a brief overview in tabular format:

Example

To demonstrate how border-inline-end-width works, let’s look at a practical example:

Here’s a code snippet that showcases both examples:

        <div style="border-inline-end-width: 5px; border-inline-end-style: solid; border-inline-end-color: blue; padding: 10px;">This element has a blue right border (left-to-right).</div>
        <div style="border-inline-end-width: 10px; border-inline-end-style: solid; border-inline-end-color: green; padding: 10px; direction: rtl;">This element has a green left border (right-to-left).</div>
    

Related Properties

Several related properties can also be beneficial when working with borders and layout in CSS:

• border-inline-start-width: Controls the width of the start border (left in LTR, right in RTL).
• border-inline-end-style: Sets the style of the end border.
• border-inline-end-color: Specifies the color of the end border.
• border-block-start-width: Defines the width of the block-start border.
• border-block-end-width: Controls the width of the block-end border.

FAQ

What is the purpose of the border-inline-end-width property?

The border-inline-end-width property allows you to define the width of borders depending on the writing direction of the text. This is especially useful for multilingual websites.

Is border-inline-end-width supported in all browsers?

Most modern browsers support this property, but it’s advisable to check for browser compatibility, especially with older versions.

Can I use pixel values with the border-inline-end-width property?

Yes, you can use specific length units such as pixels (px), em, or rem when setting the width of the border.

What happens if I don’t set a value for border-inline-end-width?

If you do not specify a value, the browser will use the default value, which is medium.

How can I combine border-inline-end-width with other border properties?

You can use border-inline-end-width in conjunction with border-inline-end-style and border-inline-end-color to create a complete border definition for the end of the inline axis.