11.19. HTML framework

发布时间 :2024-02-22 23:00:05 UTC      

By using frames, you can display more than one page in the same browser window.

iframe syntax:

The URL points to a different web page.

11.19.1. Iframe-set height and width

height and width property is used to define iframe height and width of the label.

Properties are displayed in pixels by default, but you can specify that theyare displayed proportionally (for example, “80%”).

Example

<iframeloading="lazy"src="demo_iframe.htm"width="200"height="200"></iframe>

11.19.2. Iframe-remove the border

frameborder property is used to define iframe indicates whether the border is displayed.

Set the property value to “0” to remove iframe border:

Example

<iframesrc="demo_iframe.htm"frameborder="0"></iframe>

11.19.3. Use iframe to display the target link page

iframe a page that can display a target link

The properties of the target link must use the iframe , as an example:

Example

<iframesrc="demo_iframe.htm"name="iframe_a"></iframe><p><ahref="https://www.runoob.com"target="iframe_a"rel="noopener">RUNOOB.COM</a></p>

11.19.4. HTML iframe label

Label

Description

< iframe >

Define an inline iframe

Principles, Technologies, and Methods of Geographic Information Systems  102

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.

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