How to Change Angular Mat Input Border Bottom Color to Black by Default

Описание: Learn how to customize Angular Material Input to change its border bottom color to a thick black by default, providing a sleek and professional appearance for your forms.
---
This video is based on the question https://stackoverflow.com/q/66127099/ asked by the user 'angular_code' ( https://stackoverflow.com/u/15084216/ ) and on the answer https://stackoverflow.com/a/66149028/ provided by the user 'angular_code' ( https://stackoverflow.com/u/15084216/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Changing Angular Mat Input Border Bottom Color

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Customizing Angular Mat Input Border Color

When working with Angular Material, you might encounter situations where you need to customize the appearance of input fields to better align with your application's design. One common request is to change the border bottom color of a mat-input field. This can enhance the visual appeal of your forms and improve user experience. In this post, we will explore a straightforward method for changing the border bottom color of Angular Material input fields to a thick black color by default.

The Problem

You've set up an Angular Material input field using the following code:

[[See Video to Reveal this Text or Code Snippet]]

However, you want the border bottom of the field to appear thick and black, similar to the style that appears when the input is hovered over, but you want this to be the default appearance rather than just a hover state. You’ve tried different methods to achieve this but nothing has worked so far.

The Solution

To achieve the desired style for your Angular Material input field, you need to override the default styles provided by Angular Material. Here’s how you can do it step by step:

Step 1: Locate the styles.scss File

First, you need to find your global styles.scss file in your Angular project. This file is where you'll add custom styles that affect the entire application.

Step 2: Add Custom Styles

Once you have opened styles.scss, you will want to add the following CSS rule. This will change the color of the border bottom of the outline input field to black:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the CSS Rule

.mat-form-field-appearance-outline: This class targets input fields using the outline appearance (this may differ based on your appearance setting in mat-form-field).

.mat-form-field-outline: This class targets the specific outline element of the mat-form-field.

color: black;: This sets the color of the border bottom to black.

Step 3: Save Changes and Test

After you’ve added the above CSS rule to styles.scss, save the changes and run your application. You should now see that the bottom border of your input field is thick and black by default.

Final Thoughts

Customizing the appearance of Angular Material components can greatly improve the aesthetics and usability of your applications. With just a few lines of code in your global styles file, you can change the border color of the mat-input field to suit your design requirements.

By following the steps outlined in this guide, you can make your Angular Material input fields stand out with a default black border that enhances user experience. For further customization, consider exploring other Angular Material components and see what creative adjustments you can make to fit your design scheme.

Happy coding!