Can you help me with coding?

Okay,


you know how in order to place certain things on your myspace,etc. you have to use a code? Well,I want to know how to read them so I can place and replace certain things inside that code without deleting all the other things on my page and starting all over again (like I ALWAYS have to!)


I began separating codes by placing these inside the boxes ';~'; or ';*'; and it doesn't look good on my profile.


Can you PLEASE help me with reading the coding??!!


Coding,you know,such as


%26lt;br%26gt;


%26lt;style%26gt;


and etc. Thank youCan you help me with coding?
If you need to know what some specific code means, email it to me at marshmallow1304@yahoo.com