What is the id of iframe

The id of iframe refers to the unique identifier assigned to the iframe element when using the iframe tag in HTML. In HTML, the iframe tag is used to embed another web page or document within the current web page. By setting the id attribute to the iframe element, the iframe can be easily referenced and manipulated in JavaScript.

Operating system for this tutorial: Windows 10 system, Dell G3 computer.

What is the id of an iframe? The id of an iframe refers to the unique identifier assigned to the iframe element when using the iframe tag in HTML. In HTML, the iframe tag is used to embed another web page or document within the current web page. By setting the id attribute to the iframe element, the iframe can be easily referenced and manipulated in JavaScript.

In HTML, you can use the following code to create an iframe element with an id:

<iframe id="myFrame" src="https://www.example.com"></iframe>

In the above code, the id attribute is set to "myFrame", which is a custom identifier. Through this id, we can access and manipulate this iframe element in JavaScript.

In JavaScript, you can use the following code to get a reference to the iframe element:

var iframe = document.getElementById("myFrame");

Through this reference, we can perform various operations on the iframe element, such as modifying its style and accessing its content. , or dynamically load new web pages.

In addition to referencing iframe elements in JavaScript, the id attribute can also be used to select and style a specific iframe in CSS. For example, you can use the following CSS rule to style the iframe element with the id "myFrame":

#iframe {
    width: 500px;
    height: 300px;
    border: 1px solid black;
}

By setting the id attribute to the iframe element, we can easily reference and reference it in HTML, JavaScript, and CSS. operate. The value of the id attribute should be unique to ensure there are no duplicate id values ​​in the document.

The above is the detailed content of What is the id of iframe. For more information, please follow other related articles on the PHP Chinese website!