JavaScript sets font style

In front-end development, it is often necessary to set the style of web fonts to meet the needs of aesthetics and reading experience. JavaScript is a commonly used front-end scripting language. By using its API, you can easily style web page fonts.

1. Set the font size

Using JavaScript to set the font size can be achieved using the style attribute and the CSS attribute font-size. The following is a sample code using the DOM API:

// 获取指定元素
var elements = document.getElementsByClassName('my-class');

// 设置字体大小
for(var i=0; i<elements.length; ++i) {
    elements[i].style.fontSize = '20px';
}

2. Set the font color

Similarly, you can use the CSS property color to set the font color. The sample code is as follows:

// 获取指定元素
var elements = document.getElementsByClassName('my-class');

// 设置字体颜色
for(var i=0; i<elements.length; ++i) {
    elements[i].style.color = 'red';
}

3. Set the font type

When using JavaScript to set the font type, you need to use the CSS property font-family. The sample code is as follows:

// 获取指定元素
var elements = document.getElementsByClassName('my-class');

// 设置字体类型
for(var i=0; i<elements.length; ++i) {
    elements[i].style.fontFamily = 'Arial, sans-serif';
}

4. Set the font thickness

Use the CSS property font-weight to set the font thickness. The sample code is as follows:

// 获取指定元素
var elements = document.getElementsByClassName('my-class');

// 设置字体粗细
for(var i=0; i<elements.length; ++i) {
    elements[i].style.fontWeight = 'bold';
}

5. Set the font style

In addition to the above properties, you can also use the CSS property font-style to set the font style, such as italics. The sample code is as follows:

// 获取指定元素
var elements = document.getElementsByClassName('my-class');

// 设置字体样式
for(var i=0; i<elements.length; ++i) {
    elements[i].style.fontStyle = 'italic';
}

Summary

Through the above code examples, we can see that it is very convenient to use JavaScript to set the web font style, which can be achieved by simply using the DOM API and CSS properties. When using it, you need to pay attention to browser compatibility and set appropriate font styles according to design requirements to improve the user's reading experience and aesthetics.

The above is the detailed content of JavaScript sets font style. For more information, please follow other related articles on the PHP Chinese website!