Here are some tricks which may be useful for customizing your Blogger Blog:
CSS of official Blogger widgets
Go to your Blog. 2. Right click anywhere and select 'view page source'. The page source will be opened in a new tab of your browser. Press Ctrl +F and search for 'widget_css_2_bundle.css'. You will get something like this:
Malabar is an area of Southern India lying between the Western Ghats and the Arabian Sea, the region was originally called Kerala. During Hyder Ali's invasion, the important kingdoms of Kerala were the Kolathiris of Chirakkal (present day Kannur) and the Zamorins of Calicut (Samoothiris of Kozhikode). By 1708, the British East India Company established its trading factory at Tellicherry. The Kingdom of Cochin was under the complete influence of the Dutch since 1663. Calicut was the local capital of the Mysore-ruled Kerala.
Blogger has few in-built fonts included with it. You can go to your Blogger Dashboard and navigate to Template > Customise > Advanced and choose your favorite fonts from the list.
If you want to import Google fonts to your blog, it is also very easy. Go Here and select the font you would like to use. For example, here I am selecting the 'Tangerine' font. Now click on the 'Quick use' button.