The First thing you need to do is to go to Blogger.com >> your site >> Template >> Edit HTML. Now within the new Blogger HTML Editor search for the ]]></b:skin> tag and just above it paste the following CSS coding. (Quick Tip: If you are unable to find the skin tag, then first click anywhere on the HTML Editor and Press CTRL+F to operate the built in search option connected to the HTML Editor).
.post-body img {Now change the values of Width and height, according to your needs. You can even add a border to your images through (border: 1px solid #d2d2d2) a modest border CSS command. After customizing, press the “Save Template” button and that’s all.
width: 500px!important;
height: auto!important; }
Note: If this tutorial worked for you (and it should work), please leave a comment below. Thanks.