閑言碎語不多說,直接上代碼,轉載請備註來源地,代碼自己看自己悟。 圖片在瀏覽器視窗水平居中展示(圖片尺寸不限制) ...
閑言碎語不多說,直接上代碼,轉載請備註來源地,代碼自己看自己悟。
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>圖片在瀏覽器視窗水平居中展示(圖片尺寸不限制)</title> <style> * { margin: 0; padding: 0; background: #606060 } html { height: 100%; } body { position: relative; min-height: 100%; } #img-center { width: 800px; margin: 0 auto; display: block; margin-top: 2%; margin-bottom: 2%; cursor: zoom-in; } </style> <script> window.onload = function() { /*小於瀏覽器屏幕時居中 */ var docuH = document.body.clientHeight, domH = document.getElementById("img-center").offsetHeight, dom = document.getElementById("img-center"); if(domH < docuH) { var csstext = "position:absolute;top:50%;margin-left:-400px;left:50%;margin-top:-" + domH / 2 + "px;"; dom.style.cssText = csstext; } }; /*滾動定位*/ function bbimg(o) { var zoom = parseInt(o.style.zoom, 10) || 100; zoom += event.wheelDelta / 12; if(zoom > 0) o.style.zoom = zoom + '%'; return false; } </script> </head> <body> <img src="img/3.jpg" alt="" id="img-center" onmousewheel="return bbimg(this)"> </body> </html>