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Responsive web design means that not only can our layouts change based on device characteristics, but content can change as well. For example, on high resolution 2x displays, high resolution graphics ensure sharpness. Art direction Other dekstop the image may need to be changed more drastically: changing the proportions, cropping, and even replacing the entire image. In this case, changing the image is usually referred to as art direction. See responsiveimages. In this course you will learn how to work with images on the modern web, so that your images look great and load quickly on any device.

Along the way, you will pick up a range of skills and techniques to smoothly integrate howw images into your development workflow. Hoa the end of the course, you will be developing with images that adapt and respond to different viewport sizes backgroujd usage scenarios.

This is a free course offered through Udacity Take Course Images in markup The img element is powerful—it downloads, decodes, and renders content—and modern browsers support a range of image formats. Including images that work across how to size desktop background – none: is no different than for desktop, and only requires a few minor backgronud to create a good experience.

TL;DR Use relative sizes for images to prevent them from accidentally overflowing the container. Use the picture element when you want to specify different images depending how to size desktop background – none: device characteristics a. Use srcset and the x descriptor in the нажмите для деталей element to give hints to the browser about the best image to sesktop when choosing from different densities. If your page only has one or two images and these are not used elsewhere on your site, consider using inline images to reduce file requests.

Use relative sizes for images Remember to use relative units when specifying widths for images to prevent them from accidentally overflowing the viewport. For example:. Be sure to provide meaningful descriptions via the alt attribute on img elements; these help make your site more accessible by giving context to screen readers and other assistive technologies.

Enhance img s with srcset backgroundd high DPI devices The srcset attribute enhances the behavior of the img how to size desktop background – none:, making it easy to provide multiple image files for different device characteristics.

Similar to the image-set CSS how to size desktop background – none: native to CSS, srcset allows the browser to choose the best image depending on the characteristics of the device, for example using a 2x image on a 2x display, and potentially in the future, a 1x image on a 2x device when on a limited bandwidth network. On browsers that don’t support srcsetthe browser simply uses the default image file specified by the src attribute.

This is why it is important to always include a 1x image that can be displayed on any device, regardless of capabilities.

While the conditions can include everything from pixel density to width and height, only pixel density is well-supported today. To backgronud current how to size desktop background – none: with future features, stick with simply providing the 2x image in the attribute. Art direction in responsive images with picture To change images based on device characteristics, also known as backgrohnd direction, use the picture element.

The picture element defines a declarative solution for providing multiple versions of an image based on different characteristics, like device ho, device resolution, orientation, and more. How to size desktop background – none: the picture element when an image source exists in multiple densities, or when a responsive design dictates a somewhat different image on some types of screens.

Similar to the video element, multiple source elements can be included, making it possible to specify different image files depending on media queries or image format.

Try it In the above example, if the browser width is at least px then either head. If the browser is between px and px, then either head-small. This is especially true for images that span a proportional width of the browser and are fluid, depending on the size of the browser.

Instead of supplying fixed image sizes and densities, you can specify the size of each supplied image by adding a width descriptor along with the size of the image element, allowing the browser to automatically calculate the effective pixel density how to size desktop background – none: choose the best image to download. For example, the how to size desktop background – none: below shows which image the browser would choose: Browser width Device pixel ratio Image used Effective resolution px 1 For example, on a small screen, you might want the image to span the full width of the viewport, while on larger screens, it should only take a small proportion.

Try it The sizes attribute, in the above example, uses several media queries to specify the size of the image. Make product images expandable J. Crew’s website with expandable product image. Customers want to see what they’re buying. On retail sites, users expect to be able to view high resolution closeups of products to get a better look at details, and study participants got frustrated if they weren’t able to.

A bxckground example of tappable, expandable images is provided by the J. Crew site. A disappearing overlay indicates that an image is tappable, providing a zoomed in image with fine detail visible.

Other image techniques Compressive images The compressive image technique serves a highly compressed 2x image soze all devices, no matter the actual capabilities of the device. Depending on the type of image and level of compression, image quality may not appear to change, but the file size drops significantly. Try it JavaScript image replacement JavaScript image replacement checks the capabilities of the device and “does the right how to size desktop background – none:.

When you’ve collected all of this information, you can decide which image to load. One big drawback to this approach is that using JavaScript means that you will delay image loading until at least the look-ahead parser has finished. This means that images won’t even start downloading until after the pageload event fires.

In addition, the browser will most likely download both the 1x and 2x images, resulting in increased page weight.

Inlining images: raster and vector There are two fundamentally different ways to create and store images—and this affects how you how to size desktop background – none: images responsively.

Raster images — such as photographs and other images, are represented as a grid of individual dots of color. Raster images might come from a camera or scanner, or be created with the HTML canvas element. Vector images such as logos and line art are defined as a dize of curves, lines, shapes, fill colors and gradients. Vector images can be created with programs like Adobe Illustrator mone: Inkscape, or handwritten in code using a vector format such as SVG.

The advantage of vector file formats over raster file formats is that the browser can render a vector image at any size. Vector formats describe the geometry of the image—how it’s constructed from lines, curves, and colors and so on. Raster formats, on the other hand, only have information about individual dots of color, so the browser has to guess how to fill in the blanks when scaling. SVG has great how to size desktop background – none: on mobile and desktop, and optimization tools can significantly reduce SVG size.

The full version is hackground characters in length! Drag ‘n’ drop tool such as jpillora. To reduce HTTP requests! On the downside: On mobile, Data URIs can be significantly slower to display on mobile than images from an external src. They add complexity to your markup and your workflow. Data URIs cannot be cached, so must be downloaded for every page they’re used on.

They’re not supported in IE 6 and 7, incomplete support in IE8. As with all things responsive, you need to test what works best. Use developer tools to measure download file size, the number of requests, and the total latency. Data URIs can sometimes be useful for raster images—for example, on a homepage that only has one or two photos that aren’t used elsewhere. If you need to inline vector images, SVG is a much better option.

Images in CSS The CSS background property is a powerful bacoground for adding complex images to elements, making it easy to add multiple images, and causing them to repeat, and more.

When combined with media queries, the background property becomes even more powerful, enabling conditional image loading based on screen resolution, viewport size, and more. TL;DR Use the best image for the characteristics of the display, consider screen size, device resolution, and page layout. Change the background-image property in CSS for high DPI displays using media queries with min-resolution and -webkit-min-device-pixel-ratio.

Use srcset to provide high resolution images in addition to the 1x image in markup. Consider the performance costs when using JavaScript image replacement techniques or when serving highly compressed high resolution images to lower resolution devices.

Backgroujd media queries for conditional image loading or art direction Media queries not only affect the page layout; you can also use them to conditionally load images or to provide art direction depending on the viewport width. For example, in the sample below, on smaller screens only small.

Try it Use image-set to provide high res images The image-set function in CSS enhances the behavior background property, making it easy to provide multiple image files for different device characteristics. This allows the browser to choose the best image depending on the characteristics of the device, for example using a 2x image on a 2x display, or a 1x image on a 2x device when on a посетить страницу bandwidth network.

In addition to loading the correct image, the browser also scales it accordingly. In other words, the browser ссылка на продолжение that 2x images are twice as large as 1x images, and so scales the 2x image down by a factor of 2, so that the image appears to be the same size on backgruond page. Support for image-set is still new and is only supported in Chrome and Safari with the -webkit vendor prefix.

Take care to include a fallback image for when image-set is not supported; for example:. Try it The above loads the appropriate asset in browsers that support image-set; otherwise how to size desktop background – none: falls back to the 1x asset. The obvious caveat is that while image-set browser support is low, most jone: get the 1x asset.

Use media queries to provide high res images or art direction Media queries can create rules based on the device pixel ratiomaking it possible to specify different images for 2x versus 1x displays. Chrome, Firefox, and Opera all support the standard min-resolution: 2dppxwhile the Safari and How to size desktop background – none: browsers both require the older vendor prefixed syntax without the dppx unit.

Remember, these styles are only loaded if the device matches the media query, and you must specify styles for the base case. This also provides the benefit of ensuring something is rendered if the browser doesn’t support resolution-specific media queries. Try it You can also use the min-width syntax to display alternative images depending on the viewport size.

This technique has the advantage that the image is not downloaded if the media query doesn’t match. For example, bg. When adding icons to your page, use SVG icons where possible or in some cases, unicode characters.

Replace simple icons with unicode Many fonts include support for the myriad of unicode glyphs, which can be used instead of images. Unlike images, unicode fonts scale well and look good no matter how small or large they appear on screen. SVG have a number of advantages over raster images: They’re vector graphics that can be infinitely scaled.

CSS effects such as color, shadowing, transparency, and animations are straightforward. SVG images can be inlined right in the document. They are semantic. They provide better accessibility with the appropriate attributes.

 
 

– Desktop Wallpaper Maker: Create a Beautiful Desktop Wallpaper Online | Fotor

 

Images in CSS The CSS background property is a powerful tool for adding complex images to elements, making it easy to add multiple images, and causing them to repeat, and more. When combined with media queries, the background property becomes even more powerful, enabling conditional image loading based on screen resolution, viewport size, and more. TL;DR Use the best image for the characteristics of the display, consider screen size, device resolution, and page layout.

Change the background-image property in CSS for high DPI displays using media queries with min-resolution and -webkit-min-device-pixel-ratio. Use srcset to provide high resolution images in addition to the 1x image in markup.

Consider the performance costs when using JavaScript image replacement techniques or when serving highly compressed high resolution images to lower resolution devices. Use media queries for conditional image loading or art direction Media queries not only affect the page layout; you can also use them to conditionally load images or to provide art direction depending on the viewport width.

For example, in the sample below, on smaller screens only small. Try it Use image-set to provide high res images The image-set function in CSS enhances the behavior background property, making it easy to provide multiple image files for different device characteristics. This allows the browser to choose the best image depending on the characteristics of the device, for example using a 2x image on a 2x display, or a 1x image on a 2x device when on a limited bandwidth network.

In addition to loading the correct image, the browser also scales it accordingly. In other words, the browser assumes that 2x images are twice as large as 1x images, and so scales the 2x image down by a factor of 2, so that the image appears to be the same size on the page. Support for image-set is still new and is only supported in Chrome and Safari with the -webkit vendor prefix. Take care to include a fallback image for when image-set is not supported; for example:. Try it The above loads the appropriate asset in browsers that support image-set; otherwise it falls back to the 1x asset.

The obvious caveat is that while image-set browser support is low, most browsers get the 1x asset. Use media queries to provide high res images or art direction Media queries can create rules based on the device pixel ratio , making it possible to specify different images for 2x versus 1x displays.

Chrome, Firefox, and Opera all support the standard min-resolution: 2dppx , while the Safari and Android browsers both require the older vendor prefixed syntax without the dppx unit. Remember, these styles are only loaded if the device matches the media query, and you must specify styles for the base case. This also provides the benefit of ensuring something is rendered if the browser doesn’t support resolution-specific media queries.

Try it You can also use the min-width syntax to display alternative images depending on the viewport size. This technique has the advantage that the image is not downloaded if the media query doesn’t match.

For example, bg. When adding icons to your page, use SVG icons where possible or in some cases, unicode characters. Replace simple icons with unicode Many fonts include support for the myriad of unicode glyphs, which can be used instead of images. Unlike images, unicode fonts scale well and look good no matter how small or large they appear on screen. SVG have a number of advantages over raster images: They’re vector graphics that can be infinitely scaled.

CSS effects such as color, shadowing, transparency, and animations are straightforward. SVG images can be inlined right in the document. They are semantic. They provide better accessibility with the appropriate attributes. Try it Use icon fonts with caution Example of a page that uses FontAwesome for its font icons.

Limited styling with CSS. Pixel perfect positioning can be difficult, depending on line-height, letter spacing, etc. They aren’t semantic, and can be difficult to use with screen readers or other assistive technology.

Unless properly scoped, they can result in a large file size for only using a small subset of the icons available. Try it There are hundreds of free and paid icon fonts available including Font Awesome , Pictos , and Glyphicons. Be sure to balance the weight of the additional HTTP request and file size with the need for the icons.

For example, if you only need a handful of icons, it may be better to use an image or an image sprite. Optimize images for performance Images often account for most of the downloaded bytes and also often occupy a significant amount of the visual space on the page. As a result, optimizing images can often yield some of the largest byte savings and performance improvements for your website: the fewer bytes the browser has to download, the less competition there is for client’s bandwidth and the faster the browser can download and display all the assets.

TL;DR Don’t just randomly choose an image format—understand the different formats available and use the format best suited. Include image optimization and compression tools into your workflow to reduce file sizes. Reduce the number of http requests by placing frequently used images into image sprites.

Choose the right format There are two types of images to consider: vector images and raster images. Raster images , like photographs and other images, are represented as a grid of individual dots or pixels.

Raster images typically come from a camera or scanner, or can be created in the browser with the canvas element. As the image size gets larger, so does the file size. When scaled larger than their original size, raster images become blurry because the browser needs to guess how to fill in the missing pixels.

Vector images , such as logos and line art, are defined by a set of curves, lines, shapes, and fill colors. Because vector images are built on simple primitives, they can be scaled without any loss in quality or change in file size.

When choosing the appropriate format, it is important to consider both the origin of the image raster or vector , and the content colors, animation, text, etc.

No one format fits all image types, and each has its own strengths and weaknesses. Start with these guidelines when choosing the appropriate format: Use JPG for photographic images. Use SVG for vector art and solid color graphics such as logos and line art.

Reduce the file size You can reduce image file size considerably by “post-processing” the images after saving. There are a number of tools for image compression—lossy and lossless, online, GUI, command line. Where possible, it’s best to try automating image optimization so that it’s a built-in to your workflow. Several tools are available that perform further, lossless compression on JPG and PNG files with no effect on image quality.

For JPG , try jpegtran or jpegoptim available on Linux only; run with the –strip-all option. Use image sprites CSS spriting is a technique whereby a number of images are combined into a single “sprite sheet” image. You can then use individual images by specifying the background image for an element the sprite sheet plus an offset to display the correct part.

Try it Spriting has the advantage of reducing the number of downloads required to get multiple images, while still enabling caching. Consider lazy loading Lazy loading can significantly speed up loading on long pages that include many images below the fold by loading them either as needed or when the primary content has finished loading and rendering.

In addition to performance improvements, using lazy loading can create infinite scrolling experiences. Be careful when creating infinite scrolling pages—because content is loaded as it becomes visible, search engines may never see that content. In addition, users who are looking for information they expect to see in the footer, never see the footer because new content is always loaded.

Avoid images completely Sometimes the best image isn’t actually an image at all. Whenever possible, use the native capabilities of the browser to provide the same or similar functionality. Browsers generate visuals that would have previously required images.

This means that browsers no longer need to download separate image files thus preventing awkwardly scaled images. You can use unicode or special icon fonts to render icons. Place text in markup instead of embedded in images Wherever possible, text should be text and not embedded into images.

For example, using images for headlines or placing contact information—like phone numbers or addresses—directly into images prevents users from copying and pasting the information; it makes the information inaccessible for screen readers, and it isn’t responsive. Instead, place the text in your markup and if necessary use webfonts to achieve the style you need. For example: complex gradients can be created using the background property, shadows can be created using box-shadow , and rounded corners can be added with the border-radius property.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Want to change the wallpaper on your iPhone? You can choose an Apple image or one of your own photos. You can also turn on Dark Appearance so that your iPhone dims your wallpaper depending on your ambient light. Choose an image from Dynamic, Stills, Live or one of your photos. The default wallpapers change with each iOS update. If Perspective Zoom is on, the wallpaper moves as you tilt your screen. To turn it off, tap the Perspective Zoom button at the bottom of the screen.

If your wallpaper is a Live Photo, you can turn on either the Live Photo effect or Perspective Zoom, but not both at the same time. You can set the wallpaper as your Home Screen, Lock Screen or both. The Home Screen appears when your iPhone is unlocked. The Lock Screen appears when you wake your iPhone.

Change the wallpaper on your iPhone Want to change the wallpaper on your iPhone?

 

Background Image – Tailwind CSS.

 
More like this. Phone Backgrounds, Iphone Wallpapers, Cute Wallpapers, Wallpaper Backgrounds, Wallpaper Size, Computer. More information. Phone Backgrounds. d-xxl-none will hide the element for all screen sizes except on medium and large devices. Screen size, Class. Hidden on all.d-none. Hidden only on xs.

 
 

How to size desktop background – none:.Change your desktop background image

 
 
More like this. Phone Backgrounds, Iphone Wallpapers, Cute Wallpapers, Wallpaper Backgrounds, Wallpaper Size, Computer. More information. Phone Backgrounds. d-xxl-none will hide the element for all screen sizes except on medium and large devices. Screen size, Class. Hidden on all.d-none. Hidden only on xs.