The element is by default an inline-level element. By default images are positioned as inline-level elements however, their positions may be changed using CSS, specifically the float, display, and box model properties, including padding, border, and margin. We can use a number of different approaches to position images on a web page. In this event, it’s common practice to use CSS to resize the images. While using the width and height attributes directly in HTML provides some semantic value by noting an image’s original size, it can be difficult to manage numerous images that all need to be the same size. See the Pen Sizing Images by Shay Howe ( on CodePen. Setting both a width and height will work also however, doing so may break the aspect ratio of an image, causing it to appear distorted. As an example, if we want an image to be 200 pixels tall but are less specifically concerned about how wide it is, we can set the height to 200 pixels, and the width of the image will adjust accordingly. Specifying either a width or height will cause the other dimension to adjust automatically to maintain the aspect ratio of the image. When both the HTML attributes and CSS properties are used, the CSS attributes will take precedence over the HTML attributes. One option is to use the width and height attributes directly within the tag in HTML.Īdditionally, images may be sized using the width and height properties in CSS. There are a few different ways to size images so that they work well on a page. It is important to identify the size of an image in order to tell the browser how large the image should be before the page even loads thus the browser can reserve space for the image and render the page faster. We most commonly see jpg images used for photographs and png images used for icons or background patterns. The png format is great for images with transparencies or low color counts. The jpg format provides quality images with high color counts while maintaining a decent file size, ideal for faster load times. Of these, the most widely used formats today are jpg and png. By and large, the most commonly supported formats online are gif, jpg, and png images. Images come in a variety of different file formats, and each browser may support (or not support) different formats. The alt text will be displayed in place of the image if for some reason the image is not available. The alt attribute value is picked up by search engines and assistive technologies to help convey the purpose of an image.
In conjunction with the src attribute, the alt (alternative text) attribute, which describes the contents of an image, should be applied. The src attribute value is a URL, typically relative to the server where a website is hosted. For the element to work, a src attribute and value must be included to specify the source of the image. The element is a self-containing, or empty, element, which means that it doesn’t wrap any other content and it exists as a single tag. To add images to a page, we use the inline element. Today, we can freely use images, audio, video, and inline frames knowing that this content is supported across all major browsers. Fortunately, this process has improved and is much easier with support directly from HTML.
And while the ability to add audio tracks and videos to a website has been around for years, the process has been fairly cumbersome. Browser support for images and inline frames has generally been pretty good. The ability to include images, audio tracks, videos, and inline frames within websites has been around for some time. To accompany this plain text, HTML provides ways to embed rich media in the form of images, audio tracks, and videos, as well as to embed content from another web page in the form of an inline frame. We browse the Internet in search of interesting and informative content, which we usually find in the form of plain text.
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