请问CSS里图片中的水印效果是咋做出来的呢？要加代码么？

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请问CSS里图片中的水印效果是咋做出来的呢？要加代码么？,第1张

Fireworks制作简单大方的文字水印效果：

http://tech.163.com/04/0414/14/0JUG2QMN0009rt.html

不知道是不是你问的

跟css没关系，打印网页时打印机将忽略所有网页里面的背景图，只有以<img...>形式插入的图片才会打印出来！

(你找下页面设置里面有没有能勾选打印背景图的参数，这个我不确定)

<!DOCTYPE html>

<html>

<head>

<meta charset="UTF-8">

<title>Document</title>

<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>

<style>

.str {

font: normal bold 5px Arial

/*font-size: 5px*/

color: rgb(224, 226, 226,0.4)

position: absolute

padding-left: 16px

padding-top: 53px

display: none

}

.str2 {

font: normal bold 5px Arial

/* font-size: 5px*/

color: rgb(224, 226, 226,0.4)

position: absolute

padding-left: 66px

padding-top: 130px

display: none

}

</style>

</head>

<body>

<div>HOMEANGEL</div>

<div>HOMEANGEL</div>

<img src="https://dss2.bdstatic.com/70cFvnSh_Q1YnxGkpoWK1HF6hhy/it/u=3252521864,872614242&fm=26&gp=0.jpg" style="width:100pxheight:100px" />

<div id="picture" style="width:100%margin-left: 60px">

</div>

<script>

$(function () {

var img = ["https://dss2.bdstatic.com/70cFvnSh_Q1YnxGkpoWK1HF6hhy/it/u=3252521864,872614242&fm=26&gp=0.jpg"]

GetCanvas(img)

})

function AddCanvas(src, ById) {

var img = new Image()

img.src = src

img.onload = function () {

imgW = img.width

imgH = img.height

//准备canvas环境

var canvas = document.getElementById(ById)

canvas.width = img.width

canvas.height = img.height

var ctx = canvas.getContext("2d")

// 绘制图片

ctx.drawImage(img, 0, 0, img.width, img.height)

// 绘制水印

ctx.font = "20px bold Arial"

ctx.fillStyle = "rgb(224, 226, 226,0.6)"//这里是颜色

ctx.fillText("watermark watermark", 20, 60)

ctx.fillText("watermark watermark", 120, 160)

ctx.fillText("watermark watermark", 220, 220)

//ctx.fillText("HOMEANGEL", 90, 130)

canvas.style.width = "100px"

canvas.style.height = "100px"

}

}

function GetCanvas(Strhtml) {

if (Strhtml.length >0 &&Strhtml != "") {

var html = ""

for (var i = 0i <Strhtml.lengthi++) {

var str = "sample" + (i + 1)

html += ' <canvas id=' + str + ' name="test" src=' + Strhtml[i] + ' "></canvas>'

}

$("#picture").html(html)//这里图片添加到html，然后for，添加水印

}

for (var i = 0i <Strimg.lengthi++) {

var str = "sample" + (i + 1)

var src = Strhtml[i]

AddCanvas(src, str)//id没传递

}

}

</script>

</body>