How to set image style with css

CSS (Cascading Style Sheets) is a style sheet language that is used to describe the appearance and formatting of web pages. CSS can set various styles for elements in web pages through style sheets, including images. In this article, we will learn how to style images using CSS.

1. Add images

Before learning how to set image styles, you first need to understand how to add images to a web page. The easiest way to add an image to a web page is to use HTML's img tag. Using the img tag, you can specify the URL (Web address) of the image:

Where, "src The "(source) attribute specifies the URL of the image. Relative or absolute URLs can be used. If the images are in the same directory, you can use a relative URL:

This will specify an image named "image.jpg" The files are located in the same directory. If the image files are in different directories, you can use relative paths like this:

here In the example, ".." means to return to the upper directory, then go to the "images" directory and find the file named "image.jpg".

2. Set the image size

Setting the image size is one of the most commonly used styles in CSS. The size of the image can be specified using the "width" and "height" properties. These properties accept pixels (px), percentages, and other length units as values.

For example, to set the image size to 200 pixels wide and 100 pixels high, you can use the following CSS:

img {
width: 200px;
height: 100px;
}

You can also set the width or height properties to percentages. For example, if you want to set the size of an image to 50% of its containing element, you can use the following CSS:

img {
width: 50%;
height: 50%;
}

You can set the width of the image by using a single "width" attribute, and automatically calculate the height to maintain the aspect ratio. For example, the following CSS sets the width of the image to 300 pixels:

img {
width: 300px;
}

3. Alignment and Floating

Also The position and alignment of images can be set using CSS. You can control the white space around the image using the "margin" and "padding" properties.

For example, the following CSS aligns the image to the left and adds 10 pixels of margin to the left and above the image:

img {
display: block;
float: left ;
margin: 10px 0 0 10px;
}

In this example, the "display" attribute sets the image to a block-level element so that it displays below other content. The "float" property and the "left" value float the image to the left. Finally, the values ​​of the "margin" attribute are top, right, bottom, and left in order, specifying a top and left margin of 10 pixels.

You can also use the "text-align" attribute to align images. For example, the following CSS centers the image:

img {
display: block;
margin: 0 auto;
text-align: center;
}

In this example, the value of the "margin" attribute is "0 auto", which means centering the image horizontally. Finally, the "text-align" property is set to "center" to vertically center the image.

4. Rounded corners and borders

Another common image style is rounded corners and borders. You can set the border's corner radius using the "border-radius" property. For example, the following CSS sets the image to have a 50-pixel rounded border:

img {
border-radius: 50px;
}

You can also use the "border" attribute Set the width, style and color of the image border. For example, the following CSS sets the image to 3 pixels wide with a black border:

img {
border: 3px solid black;
}

You can use "border-top", The "border-right", "border-bottom" and "border-left" properties set different borders respectively.

Summary

Using CSS, you can easily style images in web pages. Image size, position, alignment, rounded corners and borders can be set. These styles can be applied to one or more image elements of a specific type via CSS rule selectors.

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