Hello guy's, in this article I will show you how can you will Increase your Blogger Web site Header Logo size || Easily. You need to add one code in your Theme. This code is CSS code. 

How can you do it

Login to your Blog. In left side you will see Theme option, Click on it. Now click edit your theme in HTML format. Go advanced Option. Select add CSS. Now paste this code 👇:

.header-logo  img  {

                                   width: 300px;

                                 max-height:  300px;

                                 margin:  -10px;

                                }