CSS Box Model

Margin 
How to write the following CSS
margin: 3px 3px 3px 3px;
The order of the numbers is Up, Right, Down, Left, or you can write one by one like this:
margin-top: 3px;
margin-right: 3px;
margin-bottom: 3px;
margin-left: 3px;

Padding
For writing CSS Padding is similar to the margin we only need to change the "margin" to "padding" like this:
padding: 3px 3px 3px 3px;

Border
How to write the following CSS
border: 4px solid # 000;
# 000 is the color code of the HTML, you can change this to black or another color coding HTML. To find the HTML color code, please enter here. If you want to give a border only on one side please use code like this:
border-top: 4px solid # 000;
border-left: 4px solid # 000;
border-bottom: 4px solid # 000;
border-right: 4px solid # 000;


Various Kinds of Border Style 

Download example of my code : here