Tags and Attributes
Tags
All HTML elements are built using tags. So what are tags? They are keywords, specified in the corresponding HTML standard, surrounded with angle brackets (<>). Most tags come in pairs – an opening tag and a closing tag. The closing tag includes a slash (/) in the beginning. Below you can see an opening and closing html tag which surround all content in an HTML document.
1 | <html></html> |
There are a few tags which do not come in pairs. The correct way of writing such tags is to include a slash (/) after the keyword. Below is the correct way of writing a line break tag br.
1 | <br /> |
A full list of HTML tags can be found in the [tag list reference][html/html-tag-list].
Attributes
Each HTML element may have additional information associated with it via the use of attributes.
Attribute structure
- Each attribute of an element is a name-value pair; the value should be quoted.
- Multiple attributes can be specified for a single element. In such a case name-value pairs are separated with spaces.
- The list of attribute is specified in the opening tag.
1 | <h1 id="main-title">Programming Guides</h1> |
In the example above id="main-title" is an attribute of the h1 element.
You can view a full list of valid attributes in the [attributes list][html/html-attribute-list]
