step css

CSS: Use steps to make your style more precise

With the development of the Internet, websites are paying more and more attention to user experience. The appearance and interactive effects of the website have become the key to attracting users. CSS (Cascading Style Sheet), as one of the main languages ​​​​for web page styles, is particularly important for developers who design and write website pages. In CSS, using steps allows styles to be applied to elements more accurately.

Steps in CSS are a method of handling styles that allow you to follow certain steps to match and apply styles to DOM elements. These steps include element type, class name, ID, etc., allowing developers to more accurately control the objects and scope of style applications. Let’s introduce the application of steps in CSS.

1. Element type

Element type is the most basic one in the step, which specifies the element type to which the style is applied. For example, if you want to add a style to all paragraphs, you can use the following code:

p {
    color: red;
}

This way, all paragraph elements will have a red text color applied.

2. Class name

The class name is the value of the class attribute defined for the element in HTML. By defining different class names for elements, developers can more precisely control the scope of application of styles. For example, you can add a class name "table" to all tables, and then use the following code to define a style for this class name:

.table {
    border: 1px solid black;
}

In this way, all table elements with the "table" class name will apply this style .

3. ID

ID is the value of the id attribute defined for an element in HTML. Using IDs to identify elements is usually for JavaScript operations, but in CSS, IDs can also be used as steps. When using ID as a step, you can use the following code to define a style for a specific element:

#header {
    font-size: 20px;
}

In this way, elements with an id attribute of "header" will have this style applied.

4. Combining steps

By combining different steps, you can more precisely control the scope of style application. For example, when using the Element Type step, the style is applied to all elements that match the criteria. If you only want to add specific styles to certain elements within a certain class of elements, you can combine the element type and class name steps:

p.special {
    color: blue;
}

In this way, only paragraph elements with the "special" class name will be added. A blue text color will be applied.

5. Priority

When using steps, you also need to pay attention to the priority of styles. If several styles with different priorities are applied to the same element, the higher-priority style will override the lower-priority style. The priority calculation method in CSS is: element type

Summary

Steps are a very important part of CSS. By using steps, we can more accurately control the application objects and scope of styles. When using steps, you need to pay attention to the priority of styles to determine the final style applied to the element. Learning and applying the steps flexibly can help developers write CSS styles more efficiently and improve the user experience and visual effects of the website.

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