As a programmer if we want to specify the border,then we have to make use of border property.

It consists of three important values,

1. Border type : values as solid, dashed, dotted.


2. Border color


3. Border width

Border property in CSS is basically applied for all the four sides but it can also be applied for particular side by using below CSS properties,

1. Border-left


2. Border-right


3. Border-top


4. Border-bottom

To change the individual value of border then use the following properties,

1. Border-color


2. Border-style


3. Border-width

Note : If any of the above value is made as '0px' then border does not appear on the browser.

Border-Collapse : This property is used to merge the multiple borders into one border.It takes value as collapse .

Colspan attribute is used to combine the columns of the table.Programmers can use colspan with 'td' and 'th' tags only.

'th' tag stands for table heading.it is used to give bold and center effect for the table content.