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HTML 

              
                <head>
  <meta name="viewport" content="width=device-width, initial-scale=1"></head>
<body>
<nav id="navbar">
  <header id="nav"><h1>Python Documentation</h1></header>
  <a class="nav-link"href="#Introduction">Introduction</a>
  <a class="nav-link" href="#What_you_should_already_know">What you should already know</a>
  <a class="nav-link"href="#Using_the_Python_Interpretor">Using the Python Interpretor</a>
  <a class="nav-link" href="#Basics_of_Python">Basics of Python</a>
   <a class="nav-link" href="#Control_Flow">Control Flow</a>
   <a  class="nav-link" href="#Functions">Functions</a>
  <a class="nav-link" href="#Data_Structures">Data Structures</a>
</nav>

<main id="main-doc">
  <section class="main-section" id="Introduction">
    <header><h1 id="subheading">Introduction<h1></header>
    <p class="para">Python is an interpreted high level dynamic programming language.It was created by Guido van Roossum and released in 1991.The main reason for its creation was to make programming easy and productive for programmers. <br><p class="para" style="font-size:1.6vw;">Reasons why you should use python are:</p><ol id="list1"><li id="points1">Less Application and development time</li </ol><li>Ease of reading</li><li> Reduced Learning time</li><li>It works on different platforms(Mac,Windows,Linux,Rasberry pie)</li><li>Has a simple syntax which is similiar to English</li></p>
  </section>
  <section class="main-section"id="What_you_should_already_know"><header><h1 id="subheading">What you should already know</h1></header><p class="para">Before starting Python you should know:<ol id="list1"><li>The basics of command line and how to run a program on your computer</li><li>How to install Python on your computer</li><li>The basics of programming</li></ol></p>
  </section>
  <section class="main-section" id="Using_the_Python_Interpretor">
    <header><h1 id="subheading">Using the Python Interpretor</h1></header><p class="para"> To know  how to use the Python interpretor visit: 
    <a id="external"href="https://realpython.com/interacting-with-python/" target="_blank">Using the Python Interpretor</a>
    </p>
  </section>
  <section class="main-section" id="Basics_of_Python">
    <header><h1 id="subheading">Basics of Python</h1></header>
    <article id= "allbasics">
      <article id="commentsection"><h3 id="articleheading">Comments</h3><p id="commentpara"class="para"> Python ignores the comment.
        Comments are used to explain the Python code to the user to make the code more readable and accessable to the developer. They are also helpful in fixing bugs of the code or adding new features. As with comments you will know in which part of the code you made the mistake instead of going through the whole code to fix the problem.Many programming languages uses comments, python is not the first one.<br><b id="creatingcomment">Creating a comment</b><br> Comment starts with a # <br><code id="commentcode"> # </code> this is a comment symbol <br><code id=commentcode> #This is a comment example</code><br>Comments can also be place at end of line: <br><code id="print">print("helloWworld!")</code><code id="commentcode"># this is a comment</code><br> Comments can also be multilined:<br><code id=commentcode>#this is a comment <br>#Written in <br> #More than just one line</code> <br> you can also write multiline comments as : <br><code id="redcomment">""" <br> this is a a comment <br> Written in <br> more than just one line <br> """</code> </p></article>
    </article>
    <article id="variables"><h3 id="articleheading" >Variables</h3><p id="variables"class="para">Variable are container for storing data values.It is created the firt time you assign a data value to it there is no command you have to follow.<br><code id="variable">x=5<br>y="John"</code><br>These are both undeclared variable. Undeclared variables mean that their data types are not known.Variables do not need to be declared and can also be changed once declared. To declare a variable you use <b> casting </b><br>Casting Example:<br><code id="variable">x=str(3)<br> y=int(3) <br> z=float(3)</code><br> to get the Data type of a variable you use the <code id="type">type()</code> function.<br>python variabels are case sensitive <br><code id="variable">a=4</code> <br> is not the same as<br><code id="variable">A=4</code></p> <p  id="variable_img"style="text-align:center;">Here is a indepth image describing variables <br> <img style="border-style:solid;"src="https://d2h0cx97tjks2p.cloudfront.net/blogs/wp-content/uploads/sites/2/2019/12/python-variable-and-data-types.jpg" ></p><p id="a" class="para">To learn more about Python Variables visit <a href="https://www.w3schools.com/python/python_variables.asp">Python Variables</a></p> </article>
  </section>
  <section class="main-section"id="Control_Flow">
    <header><h1 id="subheading">Control Flow</h1></header><p id="controlflow"class="para">Control flow is the order of function calls,instructions and statements that is executed when a program is running.<br><p class="para"> Some of the common Control flow statements are:</p> <ol id="list1"
><li><b>if statement</b>:Which is executed only when the condition is true or else it doesnt run </li>
    <li><b>for statments:</b>It is used for iterating over a sequence(List,tuple,dictionary,set,string)
    </li> <li><b>range Function:</b>Returns a sequence of functions starting from 0 by default and increases by 1 and stop at a number specified by the developer.</li><li><b>While Loops</b>The code is executed until the condition is true then it stops.</li> </p>
  </section>
  <section class="main-section"id="Functions">
    <header><h1 id="subheading">Functions</h1></header><p id="functions" class="para">A function is a block of code which is only runned when it is called. You pass data into a function The data is called a parameter they can be of any data type. The funtion either return the data or prints the data.<br> In python the function is defined using the <code id="def"> def </code> keyword.</p>
  </section>
  <section class="main-section"id="Data_Structures">
    <header><h1 id=subheading>Data Structures</h1></header><p class="para">To Know about Data Structures visit: <br><a href="https://docs.python.org/3/tutorial/datastructures.html">Data Structures</a></p>
  </section>
  
</main>></body>
!

CSS 

              
                *{
box-sizing:border-box;
}
body{
  margin:0;
  min-width:290px;
}

.nav-link{
display:block;
text-decoration:none;
color:black;
border-style:groove;
text-align:center;
padding:26px;
 
}

#navbar{
 height:100%;
 background-color:;
 display:inline-block;
  position:fixed;
  top:0;
  left:0;
  overflow-x:hidden;
 z-index:auto;
  border-style:grove;
  
  
}

#nav{
  color:black;
  padding:26px;
  border-style:groove;
  display:inline-block;
}

#main-doc{
margin-left:350px;
min-width:290px;
overflow:scroll;


}
p{
  color:black;
}
header{
  color:black;
}
li{
  color:black;
}
#external{
  color:black;
}

#articleheading{
  color:black;
  text-align:center;
}

#commentcode{
  color:green;
  font-size:2vw;;
  
}
#redcomment{
  color:red;
  font-size:2vw;
}


#type{
  color:blue;
}
#subheading{
  margin-left:20px;
  font-size:2vw;
}
.para{
  margin-left:35px;
  font-size:1.5vw;
  margin-top:0
}
#list1{
  margin-left:40px;
}

@media  (max-width: 400px) {
  #main-doc {
    margin-left: -10px;
  }
!

JS 

              
                // !! IMPORTANT README:

// You may add additional external JS and CSS as needed to complete the project, however the current external resource MUST remain in place for the tests to work. BABEL must also be left in place. 

/***********
INSTRUCTIONS:
  - Select the project you would 
    like to complete from the dropdown 
    menu.
  - Click the "RUN TESTS" button to
    run the tests against the blank 
    pen.
  - Click the "TESTS" button to see 
    the individual test cases. 
    (should all be failing at first)
  - Start coding! As you fulfill each
    test case, you will see them go   
    from red to green.
  - As you start to build out your 
    project, when tests are failing, 
    you should get helpful errors 
    along the way!
    ************/

// PLEASE NOTE: Adding global style rules using the * selector, or by adding rules to body {..} or html {..}, or to all elements within body or html, i.e. h1 {..}, has the potential to pollute the test suite's CSS. Try adding: * { color: red }, for a quick example!

// Once you have read the above messages, you can delete all comments.
!
999px

Console