How to remove space between gadgets on the sidebars in blogger?

You may reduce the space between the gadgets by adding a single line of code. Perform the following steps to do so:
1. Sign into blogger. From the blog that you need to make the changes, click Design.
2. Click Template Designer, click Advanced, and click Add CSS (this option is at the bottom of Advanced list).
3. In the right portion enter the following text:
.sidebar .widget {margin: 10px 0;}
4. Click APPLY TO BLOG.Note:
Change the value 10px to customize for a better look that fits your needs.