水印 水印代碼放置在index.html中

HTML

<div id="waterMark"></div> 復制代碼

JS

var oWaterMark = document.getElementById("waterMark");// 水印function watermark(settings) {//默認設置var defaultSettings = {watermark_txt: "text",watermark_x: 10,//水印起始位置x軸坐標watermark_y: 30,//水印起始位置Y軸坐標watermark_rows: 20,//水印行數watermark_cols: 20,//水印列數watermark_x_space: 50,//水印x軸間隔watermark_y_space: 50,//水印y軸間隔watermark_background:"url(https://work.alibaba-inc.com/home/watermark.do) repeat", watermark_color: '#aaa',//水印字體顏色watermark_alpha: 0.5,//水印透明度watermark_fontsize: '20px',//水印字體大小watermark_font: 'Microsoft Yahei',//水印字體watermark_width: 220,//水印寬度watermark_height: 100,//水印高度watermark_angle: 15//水印傾斜度數};//采用配置項替換默認值，作用類似jquery.extendif (arguments.length === 1 && typeof arguments[0] === "object") {var src = arguments[0] || {};for (var key in src) {if (src[key] && defaultSettings[key] && src[key] === defaultSettings[key]) {continue;} else if (src[key]) {defaultSettings[key] = src[key];}}}var oTemp = document.createDocumentFragment();//獲取頁面最大寬度var page_width = window.innerWidth - 40;//獲取頁面最大高度var page_height = document.body.scrollHeight;// window.innerHeight;// 計算水印列數defaultSettings.watermark_cols = parseInt((page_width - defaultSettings.watermark_x * 2) / (defaultSettings.watermark_width + defaultSettings.watermark_x_space));defaultSettings.watermark_x_space = parseInt((page_width - defaultSettings.watermark_x - defaultSettings.watermark_width * defaultSettings.watermark_cols) / (defaultSettings.watermark_cols - 1));// 計算水印行數defaultSettings.watermark_rows = parseInt((page_height - defaultSettings.watermark_y * 2) / (defaultSettings.watermark_height + defaultSettings.watermark_y_space));defaultSettings.watermark_y_space = parseInt(((page_height - defaultSettings.watermark_y) - defaultSettings.watermark_height * defaultSettings.watermark_rows) / (defaultSettings.watermark_rows - 1));var x;var y;for (var i = 0; i < defaultSettings.watermark_rows; i++) {y = defaultSettings.watermark_y + (defaultSettings.watermark_y_space + defaultSettings.watermark_height) * i;for (var j = 0; j < defaultSettings.watermark_cols; j++) {x = defaultSettings.watermark_x + (defaultSettings.watermark_width + defaultSettings.watermark_x_space) * j;var mask_div = document.createElement('div');mask_div.id = 'mask_div' + i + j;mask_div.className = 'mask_div';mask_div.appendChild(document.createTextNode(defaultSettings.watermark_txt));//設置水印div傾斜顯示// mask_div.style.webkitTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";// mask_div.style.MozTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";// mask_div.style.msTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";// mask_div.style.OTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";// mask_div.style.transform = "rotate(-" + defaultSettings.watermark_angle + "deg)";mask_div.style.visibility = "";mask_div.style.position = "absolute";mask_div.style.left = x + 'px';mask_div.style.top = y + 'px';mask_div.style.overflow = "hidden";mask_div.style.zIndex = "999999";mask_div.style.pointerEvents = 'none';mask_div.style.opacity = defaultSettings.watermark_alpha;mask_div.style.fontSize = defaultSettings.watermark_fontsize;mask_div.style.fontFamily = defaultSettings.watermark_font;mask_div.style.background = defaultSettings.watermark_background;mask_div.style.textAlign = "center";mask_div.style.display = "flex";mask_div.style.alignItems = "center";mask_div.style.justifyContent = "center";mask_div.style.width = defaultSettings.watermark_width + 'px';mask_div.style.height = defaultSettings.watermark_height + 'px';oTemp.appendChild(mask_div);};};oWaterMark.appendChild(oTemp);}//水印繪制function waterMarkRender() {watermark({watermark_txt: "zzz" );};function onDomResize() {oWaterMark.innerHTML = "";waterMarkRender();}window.addEventListener("load", waterMarkRender)window.addEventListener("resize",onDomResize); 復制代碼

具體水印自定義設置即可，這里貼上作為參考

轉載于:https://juejin.im/post/5bc018b3e51d450e436999ad

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