Of imagery is available and can be selected from the control You can view a variety of solar system objects whose surfaces Interactive Perigee and Apogee Calculator. In addition to the Earth, you can also view the MoonĪbove named formations on the lunar surface.Ī related document compares the appearance of the Moon Information and answers to frequently-asked questions. Request with frequently-used parameters and save it as a Which shows clouds, land and sea temperatures, and ice, or theĮxpert mode allows you additional control over Image of cloud cover superimposed on a map of the Earth, a Or above various cities around the globe. Location on the planet specified by latitude, Then you will see how the HTML displays.Welcome to Earth and Moon Viewer and Solar System Explorer.Įarth showing the day and night regions at this moment, or view the Tables are compound elements (similar to lists) they are made up of several elements. Tables are a way to represent complex information in a grid format. They operate like comments in any other language. Like any other good coding language, HTML offers comments. It is often used to link a CSS file with an HTML file so that the external CSS file is used to style the HTML. Unlike the anchor element, it specifies relationships between the current document and an external resource. This element links to another page of your website: H1- h6: These designate different levels of headings or titles.Īnchor elements ( ) are used to link to other sites on the web or within your project. It is used to create a basic container of other HTML or content. It is always nested in the head tag.ĭiv: This tag is one of the most used tags. Title: This optional element is the name of your page. Head: This element contains the page title and metadata.īody: This element contains all the visible content in a page. Html: After the doctype, all page content must be contained in the tags. For the newest version of HTML, the element should look like this: It tells the browser to expect HTML and what version to use. Here are some common tags that are in almost all HTML documents.ĭoctype: This is the first element on every HTML page. Here is an example of some HTML with a few levels of nesting elements: However, the spacing is not required and is only used to make HTML easier to read for humans. When nesting elements, spaces and tabs are often used to show the level of nesting. The element that opens first closes last. HTML elements 'nest' inside of one another. Here is another example of an element with at attribute: Values are assigned to attributes and they must be contained inside quotation marks.Attributes are selected from a pre-defined set of possible attributes depending on the element. Key / value pairs are an important concept in programming.Attributes are paired with values (in this example, the value is info).Attributes are positioned inside the opening tag, before the right bracket.Here is an example of an HTML element with the attribute tag id: This is an amazing website! Attribute tags include class, id, style, lang, and src (source). AttributesĪttributes provide additional information about HTML elements. Notice in the stand-alone img element, there is no closing tag but there is a / before the final angle bracket. Paragraph elements are containers: Hi, I contain content Source: Kinds of ElementsĮlements can be either container elements (they hold content) or stand-alone elements, sometimes called self-closing elements. The words between the opening and closing tags are a paragraph. It specifies a paragraph in the HTML document. You will notice that the closing tag has a /. In the element above, the tags are (opening tag) and (closing tag). They tell you something about the content between the opening & closing tags. HTML tags mark the beginning and end of an element (and are considered part of the element). Here is an HTML element from the code above: This is an amazing website! Tags An element is an individual component of HTML. Here is the HTML that makes up a very basic webpage: You can actually see the HTML that makes up any element on a webpage by right-clicking an element and then selecting "Inspect". Here is a great interactive diagram from. In a website, HTML is the structure, CSS is the style, and JavaScript is the functionality. Every website on the internet uses HTML & CSS. HTML stands for Hyper Text Markup Language. If you are just learning HTML, I recommend both reading this article and watching the video course. I also created a 45-minute video course on the YouTube channel that teaches you HTML in the context of creating an actual web page. This article will teach you the basics of HTML.
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