Height  Property is used for sets the height of an element.



Height is not same with margin,padding,border.We can easily resize an element by this height property. In html & CSS this height property is used by :
                                   
                                           div.a {
                                                           height :  50px;                                             
                                                     }
   
 That means , in a html div element , the div properties  stands with 50px height..The contents in this div are  remaining with the same size of height property..
                                                      
                                                div.a {
                                                              height: auto;                                                                                                            }   
 
If   height : auto;   the element will automatically adjust its height to allow its content to be displayed correctly .

We can use the percentage (%)  value  as a height. For example :
                 
                                                     div.a {
                                                           height :  50%;                                             
                                                     }

This means, it's create a space of 50%  height of a div element.

The  min-height  and  max-height  properties override the height property.