html css writing method

<p>For beginners, HTML and CSS are essential tools for building web pages. The following will introduce some basic writing methods of HTML and CSS.

<p>Basic writing method of HTML:

<p>HTML is the basis of web pages. It defines the content on the page through tags. The following are some ways to write some basic HTML tags:

<p>1. Title tag:

<p>Use <h> tags to define titles, such as h1, h2, h3, etc. The smaller the number, the larger the font size.

<h1>这是一个一级标题</h1>
<h2>这是一个二级标题</h2>
<h3>这是一个三级标题</h3>

<p>2. Paragraph tags:

<p>Use <p> tags to define paragraphs.

<p>这是一个段落文本内容</p>

<p>3. Link tags:

<p>Use <a> tags to define links.

<a href="https://www.example.com">这是一个链接</a>

<p>4. Table tag:

<p>Use the <table> tag to define a table. The data in the table is defined in the <tr> tag, and each data cell is defined in the <td> tag.

<table>
  <tr>
    <td>第一行，第一列</td>
    <td>第一行，第二列</td>
  </tr>
  <tr>
    <td>第二行，第一列</td>
    <td>第二行，第二列</td>
  </tr>
</table>

<p>Basic CSS writing:

<p>CSS styles can be used to beautify web pages, such as changing colors, font styles, spacing, etc. The following is the basic writing method of CSS:

<p>1. Selector:

<p>The selector is used to locate HTML tags and then apply styles to them. For example:

• #idname: Select the element whose id is "idname"
• .classname: Select the element whose class is "classname" Element
• tagname: Select the element with the tag name "tagname"
• *: Select all elements

#title {
  color: blue;
  font-size: 25px;
}

.text {
  color: red;
  font-size: 18px;
}

body {
  background-color: gray;
}

<p>2. Attributes and attribute values:

<p>Attributes in CSS styles are used to set specific styles of elements. The value of the attribute depends on the specific situation, such as:

color:red;
width:100px;
height:50px;
padding:10px;
margin:5px;

<p>3. Notes:

<p> Comments are used to explain and illustrate the code, which can help others understand your code.

/* 这是一个注释 */

<p>Summary:

<p>HTML and CSS are two important parts of building a web page. Learning their basic syntax and rules will make it easier for you to write beautiful and standardized web pages.

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