Understanding BOILER-PLATE CODE.

<!DOCTYPE html> 
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>

</body>
</html>
<!DOCTYPE html> 
* DOCTYPE : Means Document type.
* html    : Means it is an HTML5.
<!DOCTYPE html > : means below this now the code written is in HTML5 version.
<html lang="en"> 
* lang="en" : means that the code is written in ENGLISH language.
* en : refers to ENGLISH language.
<head>
</head>

* This tag stores the information for the body .
* All the LIBRARIES and LINKS comes under this .
* The information which we have to pass for the body are come under this .
<meta charset="UTF-8">


* meta : meta is the tag which stores sensitive information of the web in this tag KEYWORDS , author name , and many more details are written. this tag is not visible to the user on the web .

* charset : CHARACTER SET.

* UTF-8   : uniform transformation format ( UTF ) and 8 is the character set             of UTF.
<meta http-equiv="X-UA-Compatible" content="IE=edge">

* This means that whatever we are writing just show it on internet explorer also .
<meta name="viewport" content="width=device-width, initial-scale=1.0">

* whatever width we are recieving on screen just set it by 1 unit.

* content="width=device-width : set the webpage according to the user display i.e according to phone , laptop , monitor display size .
<title> Name of the tab </title> : here name to the tab is given .
<body> 
</body> 

* here all the details mentioned which we have to display to the user are written here.