{"id":6186,"date":"2024-01-11T16:40:00","date_gmt":"2024-01-11T16:40:00","guid":{"rendered":"https:\/\/codehim.com\/?p=6186"},"modified":"2024-01-22T14:43:22","modified_gmt":"2024-01-22T09:43:22","slug":"zoom-image-on-mouseover-using-javascript","status":"publish","type":"post","link":"https:\/\/codehim.com\/zoom\/zoom-image-on-mouseover-using-javascript\/","title":{"rendered":"Zoom Image on Mouseover using JavaScript"},"content":{"rendered":"

Yet another lightweight image magnifier plugin that helps you to create zoom image on mouseover using JavaScript. It follows the cursor position and dynamically updates the zoomed area of the image.<\/p>\n

This simple image zoom plugin is purely built with CSS and JavaScript without any dependency. You can use this to allow users to zoom product images on hover<\/a> or use it for general-purpose image zoom functionality.<\/p>\n

How to Create Zoom Image on Mouseover using JavaScript<\/h2>\n

1. First of all, create a div element with an id “img-zoomer-box” and place your image inside it with a unique id. Likewise, create another div ( just after the image) with an id img-2 that will show the magnified image. The complete HTML structure for zoom image is as follows:<\/p>\n

<div id=\"img-zoomer-box\">\r\n  <img src=\"path\/to\/your-image.jpg\" id=\"img-1\" alt=\"Zoom Image on Mouseover\"\/>\r\n  <div id=\"img-2\"><\/div>\r\n<\/div> \r\n<\/pre>\n
2. After that, define the CSS style for the zoom box as follows. Place the same image as background<\/a> inside the “#img-2” selector.<\/p>\n
#img-zoomer-box {\r\n  max-width: 500px;\r\n  height: auto;\r\n  position: relative;\r\n  margin: 10px auto;\r\n}\r\n\r\n#img-1 {\r\n  width: 100%;\r\n  height: auto;\r\n}\r\n\r\n#img-zoomer-box:hover, #img-zoomer-box:active {\r\n  cursor: zoom-in;\r\n  display: block;\r\n}\r\n\r\n#img-zoomer-box:hover #img-2, #img-zoomer-box:active #img-2 {\r\n  opacity: 1;\r\n}\r\n#img-2 {\r\n  width: 340px;\r\n  height: 340px;\r\n  background: url('..\/img\/photo.avif') no-repeat #FFF;\r\n  box-shadow: 0 5px 10px -2px rgba(0,0,0,0.3);\r\n  pointer-events: none;\r\n  position: absolute;\r\n  opacity: 0;\r\n  border: 4px solid whitesmoke;\r\n  z-index: 99;\r\n  border-radius: 100%;\r\n  display: block;\r\n  transition: opacity .2s;\r\n}\r\n<\/pre>\n
3. Finally, add the following JavaScript code between the <script> tag before closing the body tag.<\/p>\n
\/\/Demo: https:\/\/codehim.com\/demo\/zoom-image-on-mouseover-using-javascript\/\r\nlet zoomer = function (){\r\n  document.querySelector('#img-zoomer-box')\r\n    .addEventListener('mousemove', function(e) {\r\n\r\n    let original = document.querySelector('#img-1'),\r\n        magnified = document.querySelector('#img-2'),\r\n        style = magnified.style,\r\n        x = e.pageX - this.offsetLeft,\r\n        y = e.pageY - this.offsetTop,\r\n        imgWidth = original.offsetWidth,\r\n        imgHeight = original.offsetHeight,\r\n        xperc = ((x\/imgWidth) * 100),\r\n        yperc = ((y\/imgHeight) * 100);\r\n\r\n    \/\/lets user scroll past right edge of image\r\n    if(x > (.01 * imgWidth)) {\r\n      xperc += (.15 * xperc);\r\n    };\r\n\r\n    \/\/lets user scroll past bottom edge of image\r\n    if(y >= (.01 * imgHeight)) {\r\n      yperc += (.15 * yperc);\r\n    };\r\n\r\n    style.backgroundPositionX = (xperc - 9) + '%';\r\n    style.backgroundPositionY = (yperc - 9) + '%';\r\n\r\n    style.left = (x - 180) + 'px';\r\n    style.top = (y - 180) + 'px';\r\n\r\n  }, false);\r\n}();\r\n<\/pre>\n
That’s all! hopefully, you have successfully integrated this zoom image viewer into your project. If you have any questions or facing any issues, feel free to comment below.<\/p>\n","protected":false},"excerpt":{"rendered":"
Yet another lightweight image magnifier plugin that helps you to create zoom image on mouseover using JavaScript. It follows the…<\/p>\n","protected":false},"author":1,"featured_media":6191,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[116,50],"tags":[],"class_list":["post-6186","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vanilla-javascript","category-zoom"],"acf":[],"yoast_head":"\nZoom Image on Mouseover using JavaScript — CodeHim<\/title>\n<meta name=\"description\" content=\"Here is a lightweight code snippet to zoom image on mouseover using JavaScript. 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