Part of having a cohesive blog design is to select 1 or 2 fonts and 2 to 4 colours and stick with them on your website.
The best looking sites are minimalist in design. A site which has too many differing kinds of fonts and colours on it just looks lazy. It’s also helps to select colours that suit your subject areas.
Cooler colours like blues and grays have a tendency to suit blogs that are of a technical, political or authoritative nature. Usually the smaller and more classic your font is, the more it implies authority and respect. Arial, Verdana and Helvetica are middle of the road fonts that are offered with lots blog templates as a standard font. The shorter, squatter and bigger the font, the less pro your blog will look. In addition it’s best to stay with fonts that most would have on their PCs. Bear in mind that if a P. C. Can’t read a font it will put your website on a default font so it can be read.
This will knock your layout out of alignment and give it a plain appearance on people’s PCs. Keep your layout so simple as feasible to avoid distortion of it on people’s PCs too. The search engine spiders are on to this system and will penalize your website for it.