All HTML elements can have attributes
Attributes provide additional information about an element
Attributes are always specified in the start tag
Attributes usually come in name/value pairs like: name="value"
Responsive images are images that scale nicely to fit any browser size.
Using the width Property
If the CSS width property is set to 100%, the image will be responsive and scale up and down:
Notice that in the example above, the image can be scaled up to be larger than its original size. A better solution, in many cases, will be to use the max-width property instead.
Using the max-width Property If the max-width property is set to 100%, the image will scale down if it has to, but never scale up to be larger than its original size 0950934342
Input form* Attributes
This chapter describes the different form* attributes for the HTML form input element.
The form Attribute
The input form attribute specifies the form the input element belongs to.
The value of this attribute must be equal to the id attribute of the form element it belongs to.
Responsive Web Design
A card is a flexible and extensible content container. It includes options for headers and footers, a wide variety of content, contextual background colors, and powerful display options. If you’re familiar with Bootstrap 3, cards replace our old panels, wells, and thumbnails. Similar functionality to those components is available as modifier classes for cards. 0950934342
Quickly and easily clear floated content within a container by adding a clearfix utility.
HTML Audio The controls attribute adds audio controls, like play, pause, and volume.
The source element allows you to specify alternative audio files which the browser may choose from. The browser will use the first recognized format.
The text between the audio tags will only be displayed in browsers that do not support the audio element.
Popovers Documentation and examples for adding Bootstrap popovers, like those found in iOS, to any element on your site.
Paragraphs A paragraph always starts on a new line, and browsers automatically add some white space (a margin) before and after a paragraph.
The id Attribute The HTML id attribute is used to specify a unique id for an HTML element (the value must be unique within the HTML document).
Using The id Attribute
In CSS, to select an element with a specific id, write a hash (#) character, followed by the id of the element: