Februari 3, 2014

How to Increase Thumbnail Resolution on Blogger

When we add a widget on Blogger, the thumbnails will maintain a default size of 72 x 72px which might not look good if we try to make them larger using only CSS. However, with a bit of JavaScript we’ll be able to replace the thumbnail with the same image of higher resolution and this way, larger images will no longer appear blurry.

So this tutorial will show you how to increase the thumbnail resolution size of the popular posts Blogger widget, even though we can apply this trick on any of the blog widgets.

Changing the Thumbnail Size for the Popular Posts Widget

Step 1. First, let’s add the Popular posts gadget by going to “Layout” > click on the “Add a gadget” link and select “Popular Posts” from the popup window.

adding popular posts gadget

Step 2. Next, go to “Template” > click on the “Edit HTML” button > click anywhere inside the code area to open the Blogger search box using the CTRL + F keys.

edit blogger template html

Step 3. Type or paste the following tag inside the search box then hit Enter to find it:

</head>

After you found the </head> tag, add this CSS above it:

<style type=’text/css’>
.PopularPosts .item-thumbnail a {
clip: auto;
display: block;
height: 130px;
margin: 0 0px 5px;
overflow: hidden;
width: 210px;
border: 2px solid #EEEEEE;
border-radius: 20px;
}
.PopularPosts .item-thumbnail img {
position: relative;
top: -30px;
transition:all .2s linear;
 -o-transition:all .5s linear;
-moz-transition:all .2s linear;
-webkit-transition:all .2s linear;
}
.PopularPosts .item-thumbnail img:hover{
opacity:.6;
filter:alpha(opacity=60)
}
.PopularPosts .widget-content ul li {
background: #F9F9F9;
border: 2px solid #EEEEEE;
border-radius: 10px;
box-shadow: 0 4px 10px #EEEEEE;
color: #555555;
padding: 10px;
margin-bottom: 5px;
}
.PopularPosts .item-title {
clear: both
font: 14px Cambria,Georgia, sans-serif;
color: #2288BB;
font-weight: bold;
text-transform: uppercase;
text-align: center;
}
.PopularPosts .item-snippet {
display: none;
}
.widget .widget-item-control a img {
height: 18px;
width: 18px;
}
</style>

Step 4. Now search for this tag:

</body>

And just above it, add this script:

<script type=’text/javascript’>                  
function changeThumbSize(id,size){
var blogGadget = document.getElementById(id);
var replacement = blogGadget.innerHTML;
blogGadget.innerHTML = replacement.replace(/w72-h72-p-k-no-nu/g,”s”+size+”-c”);
var thumbnails = blogGadget.getElementsByTagName(“img”);
for(var i=0;i&lt;thumbnails.length;i++){
thumbnails[i].width = size;
thumbnails[i].height = size;
}
}
changeThumbSize(“PopularPosts1“,210);                  
</script>

Highlighted in red is the widget ID for the Popular Posts gadget. To change the thumbnail size for any of your blog widgets, find the gadget/widget ID and then add a line below this part:

changeThumbSize(“PopularPosts1“,210);
changeThumbSize(“widget-ID-HERE“,210);

Then replace widget-ID-HERE text with the ID of that widget/gadget.

Note: you won’t see the changes if the widget has a class selector – for this you may need to change class with id and replace the dot “.>” symbol with “#” in the CSS code.

If you don’t know how to find the id of a particular widget, please check out this tutorial on How to Use Firebug to Design a Blogger blog.

Step 5. Finally, press the “Save Template” to save the changes and this is how you can increase thumbnail resolution on Blogger. Enjoy!

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