html image tag-HTML Tutorial-php.cn

html image tag

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Release： 2018-06-29 09:58:54

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Image tags may be the biggest and most interesting. As the saying goes, there is truth in pictures. A picture is worth a thousand words

With images in the page, it will instantly become colorful. , which instantly improves the user experience

However, images are external resources, and it takes time to load them into the current page, so although the images are good, they cannot be abused

Use them well, add the finishing touch, and use No, it’s superfluous

The image uses the tag, which was mentioned in the previous front-end experience course

Because the image is an external resource, if the resource you reference comes from the Internet, It is possible that the reference fails or the loading fails due to timeout and other reasons.

Therefore, we also need to add the alt attribute to the img tag to indicate the text description of the current image, for example: Hybrid car model

If the current If the image cannot be displayed or the user prohibits image display, this prompt text

will be displayed. This prompt text is very important. As we just introduced, search engines cannot recognize image content, so if you want the search engine to e.g. Baidu

If you know what your picture is, you must add an alt tag, so that your picture information will be retrieved, which is beneficial to the optimization of the website

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>6.图像标签</title>
</head>
<body>
<!-- <img src="../images/9.jpg"> -->
<!-- 发现图片太大了,我们刚才介绍过,img标签还有二个属性可以设置图片的大小 -->
<!-- width:设置宽度, height:设置高度,单位默认为像素,可以不写单位,只有数值 -->
<!-- <img src="../images/9.jpg" width="300px"> -->
<!-- <img src="../images/9.jpg" width="300"> -->
<!-- 宽度与高度写一个就可以,另一个属性会自动等比例缩放的 -->
<img src="../images/9.jpg" width="300" alt="混血车模">
</body>
</html>

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