How to change the font style, size and color of description in blogger?

Steps to write a blog description.

1. Visit the Settings section once you log-in in to your blog.
2. Select the Basic under Settings. It displays Basic, Publishing and Permissions in it.
3. Under Basic, it has Title, Description and Privacy. Now edit the Description and write your own description that describes your blog to the readers.  

Once it is written, visit your blog and see the changes you have made.

Steps to choose font color for blog description.

1. Go to Template section and click on Customize button. Blog Template Designer tool will open.

2. Select Advanced section and select Blog Description. 

3. Here you can select your favorite colour and make sure to click Apply to Blog button.

Your blog is ready with your chosen font colour for your blog description.

Click on Back to Blogger to make further changes to font by selecting your own font type and font size.

Steps to change the font type and size of blog description.

1. Select Template and click on Edit HTML button. New HTML Editor is seen.
2. Now select Header1 under Jump to Widget.
3. Expand the Header1 widget(click on arrow mark displayed at the beginning of Header1 line), you will see

<b:widget id='Header1' locked='false' title='Online Quick Guide (Header)'type='Header'>
          <b:includable id='main'>...</b:includable>
          <b:includable id='description'>...</b:includable>
          <b:includable id='title'>...</b:includable>
</b:widget> 

4. Now expand the description widget.
5. Replace the below line

<p class='description'>

with

<p class='description' style='font-family: verdana; font-size: 16px;'>

You can change font style by changing  verdana

6. Click on Save template button.

Now all the changes you have made are ready in your blog.