Subscripts and Superscripts

<span style="font-size: 80%; vertical-align: sub;">2</span>
<span style="font-size: 80%; vertical-align: super;">2</span>

Produces this: X2 ... X2

Images

[[Image:Xxxx_Xxxx.png width="XXXX" align="left/center/right" caption="Xxxxxxxxxx"]]

Spacing (equivalent to HTML's &nbsp;)

<span style="padding-right: .3em;">A</span>B ... and ... <span style="padding-right: .3em;">a</span>b

Produces this:
AB ... and ... ab

<span style="padding-right: .6em;">A</span>B ... and ... <span style="padding-right: .6em;">a</span>b

Produces this: AB ... and ... ab

Align image on left and clear text on the right


<span style="align: left; clear: right; display: image;">[[image:Title caption=" "]]</span>

Tables with cell padding (Use Wikitext Editor to see how this was produced)


Table 1: Flue gases
Fuel properties:
Fuel gas
Fuel oil
Coal

HTML entities (copy and paste)

· · .. the middot
• .. bullet
Δ Δ .. delta
ṁ .. mass flowrate
× ÷ × ÷
­–­ – .. en dash
∂ .. partial derivative
⇒ .. arrow


Creating a boxed blockquote

A quote from the book review of Stanley Smith:
<span style="background-color: #ffffdd; border: 1px solid #9999aa; display: block; margin: 10px 45px 0px; padding: 15px; width: 80%;">The author wrote this book because he felt there was no single reference source that clearly explained the fundamental theory and discussed the many assumptions and constraints involved in its derivation. The book starts "from scratch" in deriving the fundamental theory step-by-step, and it also provides many sample calculations serving to elucidate the theory and procedures.</span>

Produces this:
A quote from the book review of Stanley Smith:
The author wrote this book because he felt there was no single reference source that clearly explained the fundamental theory and discussed the many assumptions and constraints involved in its derivation. The book starts "from scratch" in deriving the fundamental theory step-by-step, and it also provides many sample calculations serving to elucidate the theory and procedures.