How to change the background color in html-HTML Tutorial-php.cn

Home

Web Front-end

HTML Tutorial

How to change the background color in html

青灯夜游

May 20, 2021 pm 04:12 PM

html background color

In HTML, you can change the background color by setting the style attribute of the label element and adding the "background-color: color value;" style, for example "
".

How to change the background color in html

The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.

htmlChange background color

<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
	</head>

	<body style="background-color:red;"></body>

</html>

Copy after login

Rendering:

How to change the background color in html

Description:

The background-color property sets the background color of an element. The background of an element is the total size of the element, including padding and borders (but not margins).

Grammar:

background-color:颜色值;

Copy after login

Various ways of writing color values:

1. Use color names

Although there are currently about 184 named colors, there are only 16 color names that are truly supported by various browsers and recommended as CSS specifications, as shown in the table below.

Table 1: Color names recommended by CSS specifications

/*名 称	颜 色	名 称	颜 色	名 称	颜 色
black	纯黑	silver	浅灰	navy	深蓝
blue	浅蓝	green	深绿	lime	浅绿
teal	靛青	aqua	天蓝	maroon	深红
red	大红	purple	深紫	fuchsia	品红
olive	褐黄	yellow	明黄	gray	深灰
white	壳白*/

Copy after login

It is not recommended to use color names in web pages, especially large-scale use, to avoid that some color names are not parsed by the browser, or are different Differences in how browsers interpret colors.

2. Hexadecimal color

Hexadecimal symbols #RRGGBB and #RGB (such as #ff0000). "#" followed by 6 or 3 hexadecimal characters (0-9, A-F).

This is the most commonly used color selection method, for example:

#f03
#F03
#ff0033
#FF0033

Copy after login

3, RGB, red-green-blue (RGB)

The color value is specified as the color of the rgb code. The function format is rgb(R,G,B), and the value can be an integer or percentage from 0-255.

rgb(255,0,51)
rgb(255, 0, 51)
rgb(100%,0%,20%)
rgb(100%, 0%, 20%)

Copy after login

Extensions: RGBA, Red-Green-Blue-Alpha (RGBa)

RGBA extends the RGB color mode to include an alpha channel, allowing the transparency of a color to be set. a represents transparency: 0=transparent; 1=opaque.

rgba(255,0,0,0.1)    /* 10% 不透明 */  
rgba(255,0,0,0.4)    /* 40% 不透明 */  
rgba(255,0,0,0.7)    /* 70% 不透明 */  
rgba(255,0,0,  1)    /* 不透明，即红色 */

Copy after login

4. HSL, hue-saturation-lightness (Hue-saturation-lightness)

Hue (Hue) represents the color circle (that is, a circle representing a rainbow) ring) at an angle.
Saturation and brightness are expressed as percentages.
100% is full saturation, while 0% is a grayscale.
100% lightness is white, 0% lightness is black, and 50% lightness is "normal".

hsl(120,100%,25%)    /* 深绿色 */  
hsl(120,100%,50%)    /* 绿色 */       
hsl(120,100%,75%)    /* 浅绿色 */

Copy after login

Extension: HSLA, Hue-Saturation-Lightness-Alpha (HSLa)

HSLa extends from the HSL color mode and includes the alpha channel, which can specify the transparency of a color. a represents transparency: 0=transparent; 1=opaque.

hsla(240,100%,50%,0.05)   /* 5% 不透明 */   
hsla(240,100%,50%, 0.4)   /* 40% 不透明 */  
hsla(240,100%,50%, 0.7)   /* 70% 不透明 */  
hsla(240,100%,50%,   1)   /* 完全不透明 */

Copy after login

5, transparent

Special color value, indicating transparent color. Can be used directly as color.

For example: color:transparent Set the font color to transparent

<style type="text/css">
    body{background:hsl(270,100%,50%)}
    p{
        font-size:50px;
        font-family:"黑体";
        /*浏览器私有属性*/
        -webkit-text-fill-color:transparent;/*设置文本透明*/
        /*使用rgba(0,0,0,0);也可以实现全透明模式*/
        -webkit-text-stroke:2px yellow;/*将文本设置透明，再设置个边框后就实现镂空字了*/
        /*W3C标准属性*/
        /*text-fill-color:transparent;*/
        /*text-stroke:2px yellow;*/
    
    }
</style>
<body>
    <p>2012年过去了，最忙的是元芳，你怎么看？</p>
</body>

Copy after login

Recommended tutorials: html video tutorial, css video tutorial

The above is the detailed content of How to change the background color in html. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn