html picture settings

HTML is a markup language commonly used in web page production, the most commonly used of which is the insertion and setting of images. In this article, we will introduce how to set images in HTML, including inserting images, setting image sizes, adding image borders, etc.

Insert pictures

The way to insert pictures in HTML is very simple, you can use the <img> tag, as shown below:

<img src="图片地址" alt="图片描述">

Among them, the src attribute specifies the address of the image, and the alt attribute is the alternative text displayed when the image cannot be loaded. Note that when specifying the image address, you need to put it in quotation marks, such as src="image/example.jpg".

Set the image size

In HTML, you can use the width and height attributes of the <img> tag to Control the size of images. For example, the following code sets the width of the image to 400 pixels and the height automatically adapts to the image proportions:

<img src="image/example.jpg" alt="example" width="400">

To set the width and height at the same time, you can write it in the following format:

<img src="image/example.jpg" alt="example" width="400" height="300">

When setting the size , please note the following points:

• It is best to use pixels when setting dimensions, because they are a fixed size relative to the visible area on the screen.
• If only one value is specified (such as only setting the width), the height will automatically adapt to the image proportions.
• If the width and height are set at the same time, it may cause the image to be stretched or compressed, so the values ​​need to be set according to the actual situation.

Add image border

To add a border to an image, you can use the border property of CSS. First, you need to set an id or class for the image, and then set the border style for it in the CSS file. Here is a simple example:

HTML code:

<img src="image/example.jpg" alt="example" id="picture">

CSS code:

#picture {
  border: 1px solid black;
}

In this example, id="picture"## is used #Set an id for the image, and then set a 1-pixel-wide, solid black border in CSS.

If you want to set different border styles, you can specify other properties in CSS, such as

border-color, border-width and border-style .

Summary

The method of inserting and setting images in HTML is very simple. You only need to use the

<img> tag and the corresponding attributes. To add a border to an image, you can use the border property of CSS. By mastering these basic knowledge, you can easily process images in web page production.

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