
The src attribute in HTML is used to specify the source of an image, audio, or video file.
It is a fundamental attribute in HTML that allows you to link an external file to your webpage.
The src attribute is typically used in the img, audio, and video tags to load the specified file.
In the example of an image tag, the src attribute is used to link the image file to the webpage, making it visible to the user.
Discover more: How to Add Image Src in Html from Folder
What Is It?
The SRC attribute in HTML is used to specify the source of an embedded content.
It's commonly used in tags like img, script, iframe, and video to provide the URL of the content that should be embedded.
The SRC attribute can only specify one source file.
However, you can use the preload tag along with the SRC attribute to specify multiple source files.
Take a look at this: Img Src 경로
Supported Tags
The src attribute is used in various HTML tags to link to external resources. It contains a single value URL that specifies the link of the source file.

There are two types of URL links: Absolute URL and Relative URL. An Absolute URL points to a resource outside the current website/domain.
A Relative URL, on the other hand, points to a resource within the same website/domain. This is useful for linking to files on the same server.
Here's a quick summary of the two types of URL links:
Examples and Usage
The src attribute in HTML is a powerful tool for embedding external resources into your web pages. It's used in various tags, including img, video, audio, and script.
You can use the src attribute to display videos based on the link provided in the attribute, as seen in Example 1.
The src attribute can also be used to add captions to videos from external files, like the ex1.vtt file linked using the src attribute in Example 2.
Audio files can be embedded using the src attribute in the audio tag, allowing you to display audio controls in the output window, as shown in Example 3.
A fresh viewpoint: Html Svg Src

External JavaScript files can be included in your HTML code using the src attribute within a script tag, as demonstrated in Example 4.
The src attribute supports two types of URL links: Absolute URLs, which point to resources outside the current website/domain, and Relative URLs, which point to resources within the same website/domain, as listed in Example 5.
To ensure compatibility with different browsers, it's recommended to provide alternative sources using the source tag when embedding audio and video files using the src attribute, as mentioned in Example 6.
Here's a summary of the supported tags for the src attribute:
Compatibility and Limitations
The src attribute has its limitations, and it's essential to understand them to avoid any issues.
The src attribute cannot be used with all HTML tags, specifically those that don't support it will result in an HTML validation error.
In particular, it's used with tags that embed external content, such as img, script, iframe, and others.
Compatible with all tags?

The SRC attribute is not a one-size-fits-all solution. It's specifically designed to work with tags that embed external content.
You can't use the SRC attribute with just any HTML tag. For example, trying to use it with tags that don't support it will result in an HTML validation error.
The SRC attribute is compatible with tags like , , and . These tags are designed to embed external content, making the SRC attribute a perfect fit.
Can Relative URLs Be Used?
Using relative URLs can be a convenient option when specifying the source of an image.
Yes, you can use relative URLs with the SRC attribute, as they are URLs that are relative to the current document. For instance, if you have an image in the same directory as your HTML file, you can simply specify the image file name in the SRC attribute.
Broaden your view: Relative Addressing Html
Embedding Media
You can use the SRC attribute to embed audio and video files using the and tags respectively. This is a convenient way to add multimedia content to your webpage.

To ensure compatibility with different browsers, you should also provide alternative sources using the tag.
There is no specific maximum file size for content embedded using the SRC attribute, but larger files may take longer to load and impact the performance of your webpage.
It's recommended to optimize your files for web use to prevent slow loading times and improve user experience.
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Technical Details
You can specify a protocol like http in the src attribute, but it's not the most common way to use it.
The src attribute can be used to link to an external file, like an mp4 video.
You can't use http in src instead of the path to the mp4 file, but it's possible to specify a protocol like http in the src attribute.
Discover more: Http vs Html
Differences and Special Cases
The SRC attribute is used to embed content within a document, while the HREF attribute is used to link to content. This is a fundamental difference between the two.

The SRC attribute can be a bit tricky to get right, especially when it comes to URLs. You have two options: Absolute URLs, which point to resources outside your current website or domain, and Relative URLs, which point to resources within your own website or domain.
Here are the two types of URLs in a quick summary:
What If Img Tag Is Missing?
If the SRC attribute is not specified in an tag, the browser will not be able to locate and display the image.
In that case, it will display the alternative text specified in the ALT attribute, if provided. If the ALT attribute is also not provided, it will display an empty box in place of the image.
This is in contrast to using the src attribute in an tag, where captions get added to the video from an external file.
For example, in the case of using the src attribute in an tag, captions get added to the video from an ex1.vtt file that is linked using the src attribute.
For more insights, see: Using Oembed in Base Html
Difference Between Href

The SRC and HREF attributes are both used to specify the source of a content.
The SRC attribute is used to embed the content within the document. This means the content is directly inserted into the document, making it an integral part of the page.
The HREF attribute, on the other hand, is used to link to the content. This means the content is not embedded, but rather a link is created to access it from another location.
By understanding the difference between these two attributes, you can create more effective and user-friendly web pages.
Additional reading: Change Div When Click on Href Html Css
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