「IMG」とは「image」の略で、文書内に画像を表示するためのタグです。 表示する画像ファイルはsrc属性で指定し、WEB上ではGIF形式（*.gif）、JPEG形式（.jpg）、PNG形式（*.png）の画像形式を指定することができます。 Input Pattern: Use It To Add Basic Data Validation In HTML5, The HTML Comment Tag: Here’s How To Use It In Your Code, HTML A Href Attribute: A Quick And Simple Guide. If you use the “wrong” image file format, you’ll end up with images that either don’t look good, or that are too large and waste bandwidth. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. They can also be useful in situations where external images might not get loaded, such as in emails or in self-contained documents to be read offline. Each browser supports a slightly different set of image file types. The image defined by the URL is retrieved by the browser and inserted into the document when the page loads. 03, Jun 19. The purpose of the HTML src attribute is to specify a URI for an external file or resource. However, that doesn’t mean that image file type doesn’t matter. First of all, if the image in question is under copyright, and you do not have permission to use it, you may be in violation of copyright laws by hotlinking. Des vignettes sont des versions miniatures (moins de kilobytes) des images qui ont une bien meilleure qualité. New in HTML5 is an image attribute named srcset. html image src. Diese kann wie in HTML üblich relativ oder absolut angegeben werden. 100% FREE COURSES Get Access to Top-Rated FREE Udacity Courses. While you aren’t exactly “stealing” the image, you are using up their bandwidth and creating ill will. Folgende Angaben sind immer nötig: . With HTML, add the image source as the path of your system drive. "src" est un raccourci pour "source". Most normal image formats (JPEG, GIF, PNG, BMP, TIFF, SVG) will work in most situations most of the time. Always a URL. 24, Jul 19. Here is some quick information about the most important image file formats: 99% of your image needs can be served with PNGs and JPEGs, and your designs will look better if you don’t mix the two up. Recomendações sobre HTML img. Como explicado no tutorial sobre links você pode usar qualquer URL para mostrar um arquivo. Pour créer une vignette, sauvegardez l'image dans une qualité plus basse que l'original. If the srcset image fails to load, or if the browser doesn’t support srcset, the src file will be selected instead. You use the same type of attribute as the href attribute from the last article, so having used that before will help you get your head around this quicker. Most meaningful images are going to create insanely long strings (just see the example above), and they actually don’t load as fast as external files. Finally, if you don’t control the hotlinked image, it might change. Absolute URLs The alt is the alternate text attribute, which is text that is visible when the image fails to load. It is almost always the best idea to use source URLs which are relative to the domain, not the page. This is the basic stuff — just getting the image on your page. L'attributo principale del tag IMG è src che è utilizzato per definire la URL dell'immagine che si vuole incorporare nella pagina. Cet attribut définit le texte alternatif utilisé lorsqu'il est impossible d'afficher l'image (par exemple si l'URL est incorecte ou si l'image n'est pas encore téléchargée). Cet attribut est utilisé pour indiquer l'emplacement de l'image. Protip: If you want to block others from hotlinking your images, you can do so with .htaccess. Il est donc important de les utiliser de la bonne façon. This way, the URLs won’t break when you change domains (which will happen automatically if you use a development or staging server in addition to your production one). 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