Type to generate custom UI components with AI

Type to generate UI components from text

OR

Browse thousands of MUI, Tailwind, React components that are fully customizable and responsive.

Explore Components

A Quick Guide to Understanding Tailwind Border Width

Border width refers to the thickness or width of the border surrounding an element, such as a box or a container. Border width is often used to visually semraparate and define elements on a webpage or in a graphic.

The border width is typically measured in pixels (px) or other units of length, like em or rem. A larger border width will make the border thicker and more prominent, while a smaller width will create a thinner border.

The border width is just one aspect of the overall styling of the element’s borders, and you can further customize the border width appearance by setting its color and style, among other properties.

PS: Engineers waste time building and styling components when working on a project, writing repetitive markup adds time to the project and is a mundane, boring task for engineers. PureCode.ai uses AI to generate a large selection of custom, styled UI components for different projects and component types.

How do you add Border Width in Tailwind?

In Tailwind CSS, you can create a border around an element by using the border width utilities for controlling classes. The border utilities class follows a naming convention of `border-{side}-{size}`, where `{side}` can be one of the following:

  • `t` for top

  • `r` for right

  • `b` for bottom

  • `l` for left

  • `x` for the horizontal sides

  • `y` for the vertical sides.

And `{size}` can be one of the predefined values in your Tailwind CSS configuration, such as `0`, `1`, `2`, `4`, `8`, `…`, or you can customize these sizes in your configuration file. Here are some examples:

  • border-t-2 adds a 2-pixel border to the top of an element.

  • border-r-4 adds a 4-pixel border to the right of an element.

  • border-b adds a default border to the bottom of an element (usually 1 pixel unless customized).

  • border-l-8 adds an 8-pixel border to the left of an element.

  • border-x-2 adds a 2-pixel border to an element’s left and right sides.

You can customize the border width sizes to fit your preferences.

Adding Border Width to All Sides

To add a border width to all sides of an element in Tailwind CSS, you can use the `border-{size}` utility class without specifying a side. Here’s how you can do it:

1. Choose the desired border width, such as `border-2` for a 2-pixel border.

2. Apply the chosen border width class directly to the HTML element you want to style.

<div class="border-2">
  Hello, Tailwind CSS!
</div>

In this example, a 2-pixel border will be applied to all sides of the `<div>` element.

What are the Border Sides in Tailwind?

There are four border positions in CSS as well as in Tailwind CSS, these positions are;

  • The top position

  • The right position

  • The bottom position

  • The left position

To add a border width to individual sides of an element in Tailwind CSS, you can use the five border width utilities classes following the convention `border-{side}-{size}`, where `{side}` is one of `t` (top), `r` (right), `b` (bottom), or `l` (left), and `{size}` is the desired border width. Here are some instances for each side:

  1. Top border width `border-t-{size}`: The border t adds a border to the top side of an element.

  2. Right border width `border-r-{size}`: The border r adds a border to the right side of an element.

  3. Bottom border width `border-b-{size}`: The border b adds a border to the bottom side of an element.

  4. Left border width `border-l-{size}`: The border l adds a border to the left side of an element.

For instance, if you want to add a 2-pixel border width to the top and bottom and a 4-pixel border width to the right and left sides of an element, you can use the `border-t` and `border-b` classes. Here’s how:

<div class="border-t-2 border-r-4 border-b-4 border-l-4">
  Hello, Tailwind CSS!
</div>

And here’s the result below:

You can adjust the `{size}` values and combine different side classes as needed to achieve your desired border width on individual sides of the element’s borders.

How do you add Border Width Between Elements in Tailwind?

You can add borders between elements by using margin or border classes. To add borders between elements specifically, you can utilize border classes on the elements themselves or create a parent container with a border to separate the child elements. Here’s how you can do it:

1. You can add a border width between elements by applying border classes to each element.

<div class="border border-r-1">
  Content of the first element
</div>

<div class="border border-indigo-600">
  Content of the second element 
</div>

A 1-pixel border is added to the right side of the first div element, creating separation between the two elements.

2. Using a parent container to separate child elements with a border. For example:

 <div class="border border-l-1 border-indigo-400">
   <div class="border-r-2">
     First child content here
   </div>

   <div class="border-b-2">
     Second child content here
   </div>
 </div>  

In this case, the parent `div` has a left border of 1 pixel, which creates a separation between its child `div` elements.

Using Tailwind Border Width without Preflight

The Preflight feature is responsible for applying some baseline styles to elements, including removing margins and paddings from certain elements like headings and paragraphs. Here’s how to do it:

1. Apply the `border` class directly to the HTML element you want to add a border to.

<div class="border border-t-2 border-r-4 border-b border-l-8 border-x-2 border-y-2" border-indigo-600>
  Hello!
</div>

In this example, the `border` class is used along with various other border utility classes to add border width to different sides of the `<div>` element while also applying a border color of indigo. These utility classes will work without the influence of Preflight. Here’s the result below:

You can modify your Tailwind CSS configuration file to define border style and width. This way, you have full control over the appearance of borders without relying on Preflight.

Applying Tailwind Border Width Conditionally

Now let’s take a look at how Tailwind border width utilities can be used conditionally when working on a project with Tailwind CSS.

Hover, Focus, and Other States

You can easily apply the border style for various states using utility classes. Here’s how it can be applied to different states:

1. Hover State: To apply a border style when an element is hovered over, use the `hover:` prefix followed by the desired classes. For example:

 <a class="text-black hover:text-blue-500">
   Hover me
 </a>   

2. Focus State: Use the’ focus: ‘ prefix to apply the border style when an element is in focus, such as when a user clicks or tabs into an input field. For example:

<input class="border-indigo-400 focus:border-indigo-600" type="text" placeholder="Enter your name">    

3. Active State: To apply the border style when an element is active, like when a button is clicked, use the `active:` prefix. For example:

<button class="bg-blue-500 active:bg-blue-700">Click me</button>

4. Disabled State: To style disabled elements, use the `disabled:` prefix. For example:

<button class="bg-blue-500 disabled:opacity-50" disabled>Disabled button</button>

5. Group Hover: If you want to apply styles to an element when a parent element is hovered, you can use the `group` and `group-hover` classes. For instance, changing the text color of a child element when its parent is hovered:

<div class="group hover:text-blue-500">
  <p>Hover over me</p>
</div> 

Responsiveness – Breakpoints and Media Queries

You can create responsive designs using breakpoints and media queries using the provided Tailwind responsive utilities for controlling styles based on different screen sizes. Here’s how it works:

Tailwind CSS includes predefined breakpoints for different screen sizes:

  • `sm`: For small screen sizes (usually mobile devices)

  • `md`: For only medium screen sizes (tablets and smaller desktops)

  • `lg`: Large screen sizes (typical desktop screens)

  • `xl`: Extra-large screen sizes (large desktop screens)

To create responsive designs, you can append the breakpoint to your utility classes by using the `sm:`, `md:`, `lg:`, or `xl:` prefixes. Here are some instances:

1. Responsive Margin on Small Screen sizes:

   <div class="m-4 sm:m-8 md:m-12 lg:m-16 xl:m-20">

     Hello, Tailwind CSS!

   </div>

In this example, margins increase as the screen size increases, providing spacing adjustments for different devices.

2. Hiding on Small Screen sizes:

   <div class="hidden sm:block">
     Hello, Tailwind CSS!
   </div>

The `hidden` class hides the element by default, but `sm:block` makes it visible on small screens.

3. Text Size on Large

   <p class="text-base sm:text-lg md:text-xl lg:text-2xl xl:text-3xl">
     Hello, Tailwind CSS!
   </p>

The text size grows as the screen size gets larger.

Customizing Tailwind Border Width Default Values in the Config

To customize the default border width values in Tailwind CSS, you can modify your project’s configuration file, typically named `tailwind.config.js`. Here’s how you can do it:

1. Open your Tailwind CSS configuration file: If you don’t already have a configuration file, you can create one using the following command:

npx tailwindcss init

This command will generate a `tailwind.config.js` file in your project directory.

2. Customize the `borderWidth` section: In your `tailwind.config.js` file, locate the `borderWidth` section. It typically looks like this:

   module.exports = {
     theme: {
       extend: {
         borderWidth: {
           DEFAULT: '1px',
           '0': '0',
           '2': '2px',
           '4': '4px',
           '8': '8px',
         },
       },
     },
     plugins: [],
   };

You can customize the `borderWidth` section by changing the default border width and adding a new one.

  1. Save your changes.
  2. Rebuild your CSS: After customizing the `borderWidth` values, you must rebuild your CSS to apply the changes. Use the appropriate command below for your project setup.
npm run build

Once you’ve completed these steps, your Tailwind CSS styles will use the customized border width values you specified in your configuration file, allowing you to tailor the border width to better suit your project’s design requirements.

Configuring Tailwind Border Width Variants in the Config

To configure border width variants in Tailwind CSS, you need to specify which variants should be generated for border width utilities.

Border width variants determine for which states Tailwind should generate border width classes.

In your `tailwind.config.js` file, locate the `theme` section and configure the `borderWidth` variants. For example, if you want to generate hover and focus variants for border width classes, you can configure it like this:

   module.exports = {
     theme: {
       extend: {
         borderWidth: {
           DEFAULT: '1px',
           '2': '2px',
           '4': '4px',
           '8': '8px',
         },
       },
     },
     variants: {
       extend: {
         borderWidth: ['hover', 'focus'],
       },
     },
     plugins: [],
   };

In this example, the `variants` section specifies that the `borderWidth` utility classes should have additional variants for `hover` and `focus`. This means you can apply border width styles on hover and focus states.

How to Disable Tailwind Border Width Utilities?

If you want to disable specific Tailwind CSS border width utilities, you can do so by customizing your project’s configuration file (`tailwind.config.js`). You can remove or exclude certain utilities from the generated CSS by modifying the `theme` and `plugins` sections in your configuration file.

In your `tailwind.config.js` file, locate the `theme` section and customize the `borderWidth` values by removing the classes you want to disable. For example, if you want to disable the `border-2` and `border-4` classes, you can remove them from the configuration:

   module.exports = {
     theme: {
       extend: {
         borderWidth: {
           DEFAULT: '1px',
           // Remove the border-2 and border-4 classes
           '0': '0',
           '8': '8px',
         },
       },
     },
     plugins: [],
   };

Remove the corresponding classes from your HTML

How do you use Border Color in Tailwind CSS?

Border colors can be applied to elements using utility classes. Border color utility classes follow a simple naming convention, allowing you to easily specify the desired border color.

To apply border color to the border width of an element, use the `border-{color}` class. Here’s an example:

<div class="border-indigo-600">
  Hello, Tailwind CSS
</div>

In this example, `border-indigo-500` sets an indigo border color to the element. The number in the class name corresponds to the specific shade or color intensity.

You can choose from a wide range of color options, Tailwind CSS supports color names and numeric values, which you can customize in your configuration file.

To customize border colors and add new color options, you can modify the `extend` section of your `tailwind.config.js` file, like this:

module.exports = {
  theme: {
    extend: {
      borderColor: {
        'custom-color': '#ff9900', 
      },
    },
  },
  plugins: [],
}

After defining a custom border color in your configuration, you can use it like this:

<div class="border-custom-color">
  Hello, Tailwind CSS!
</div>

How do you Change the Border Color in Tailwind?

To change the border color of an element in Tailwind CSS, you can use the utility classes provided by Tailwind. These classes follow a naming convention, allowing you to specify the desired border color. Here’s how you can change the border color of an element:

1. You can specify the color using a named color from the default palette, a hex code, an RGB or RGBA value, or a custom color defined in your `tailwind.config.js` file.

2. Use the `border-{color}` utility class to set the element’s border color. Replace `{color}` with the name or value of the desired color. For example, if you want to change the border color to indigo, you can use the `border-indigo-600` class:

   <div class="border border-indigo-600">
     Hello, Tailwind CSS!
   </div>

If you have a custom color defined in your `tailwind.config.js` file, you can use it like this:

   <div class="border border-custom-color">
     Hello, Tailwind CSS!
   </div>

In this case, “custom-color” should match the name you defined in your configuration.

3. If you want to define custom border colors or modify the default color palette, you can do so in your `tailwind.config.js` file under the `theme.extend.borderColor` section. Here’s an example:

   module.exports = {
     theme: {
       extend: {
         borderColor: {
           'custom-color': '#FF5733', 
         },
       },
     },
     plugins: [],
   };

After defining a custom border color in your configuration, you can use it as a utility class in your HTML.

By following these steps, you can easily change the border color of elements in Tailwind CSS to achieve the desired design for your project.

How do you Change the Border Color on Focus in Tailwind CSS?

To change the border color of an element when it’s in focus, you can use the focus variant classes. Focus variants allow you to apply styles to elements when clicked or in focus. Here’s how you can change the border color on focus:

1. Decide on the color you want to use when the element is in focus. You can use any color class available in Tailwind or a custom color defined in your `tailwind.config.js` file.

2. Use the `focus:{border-color}` utility class to set the border color on focus. Replace `{border-color}` with the name or value of the desired color. For example, if you want to change the border color to red when an input element is in focus:

<input type="text" class="border border-indigo-300 focus:border-indigo-500" placeholder="Type here">

3. Customizing the Border Color in `tailwind.config.js` (Optional): If you want to define custom border colors or modify the default color palette, you can do so in your `tailwind.config.js` file under the `theme.extend.borderColor` section. This allows you to use custom colors in your focus classes.

Here’s an example of how to define a custom color and use it on focus:

module.exports = {
  theme: {
    extend: {
      borderColor: {
        'custom-color': '#FF5733', // Define a custom color
      },
    },
  },
  plugins: [],
};

After defining a custom border color in your configuration, you can use it in the `focus: border-{color}` class to change the border color on focus.

How do I Change the Color of my Border?

To change the color of a border in Tailwind CSS, you can use border-color utility classes. Tailwind provides classes that allow you to specify the desired border color. Here’s how you can change the color of your border:

  1. First, decide on the color you want to use. You can specify the color using a named color from the default palette, a hex code, an RGB or RGBA value, or a custom color defined in your `tailwind.config.js` file.

  2. Use the `border-{color}` utility class to set the element’s border color. Replace `{color}` with the name or value of the desired color.

  3. If you want to define custom border colors or modify the default color palette, you can do so in your `tailwind.config.js` file under the `theme.extend.borderColor` section. Here’s an example:

module.exports = {
  theme: {
    extend: {
      borderColor: {
        'custom-color': '#FF5733', 
      },
    },
  },
  plugins: [],
};

After defining a custom border color in your configuration, you can use it as a utility class in your HTML.

By following these steps, you can easily change the color of your element’s border in Tailwind CSS to achieve the desired design for your project.

Tailwind Border Wrap-Up

In summary, Tailwind CSS offers a powerful and flexible way to create and customize the design of web elements. With its utility classes, responsive design features, and extensibility, Tailwind empowers developers to build modern, visually appealing websites and applications with ease. Whether you’re a seasoned developer or just starting, Tailwind CSS streamlines the design process and provides the tools you need to bring your creative ideas to life.

Reference

For your reference, you can also check out the below YouTube video to learn more about Tailwind CSS border or read more about Tailwind borders in the documentation.

PureCode.ai can cater to your code development process. It will save you valuable time and effort on a project by providing customized, and ready-to-use components which will allow you to prioritize more important and thought-intensive tasks to speed up the development of your user interface.

Shadrach Abba

Shadrach Abba