Asking for a help on my project

i am currently on my third project(technical document page) for days now, i have to solve the final error that state ‘add at least 5 code in your content’ , i have been trying to solve it with the knowladge i have but could not.
please who can help me to navigate the problem?
thanks in advance

Hey there,

if you’ll show us your code,
it would be easier for us to help you.

thank you miku86, this is my code;

<!DOCTYPE html>
<html lang="en">
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
    #forge {font-size: 30PX;
             background: #808080;
             text-align: center;}
  <h1  id="forge">ENGINEERING </h1>
<main id="main-doc">
  <section class="main-section" id="introduction_of_engineering">
  <header><strong>introduction of engineering</strong></header>
    <p>Engineering is the use of scientific principles to design and build machines, structures, and other items, including bridges, tunnels, roads, vehicles, and buildings. It can also be said that it is the application of science and math to solve problems. Engineers figure out how things work and find practical uses for scientific discoveries. Scientists and inventors often get the credit for innovations that advance the human condition, but it is engineers who are instrumental in making those innovations available to the world. The discipline of engineering encompasses a broad range of more specialized fields of engineering, each with a more specific emphasis on particular areas of applied mathematics, applied science, and types of application.</p>
    <p>Engineering has existed since ancient times, when humans devised inventions such as the wedge, lever, wheel and pulley, etc.

The term engineering is derived from the word engineer, which itself dates back to the 14th century when an engine'er (literally, one who builds or operates a siege engine) referred to "a constructor of military engines."In this context, now obsolete, an "engine" referred to a military machine, i.e., a mechanical contraption used in war (for example, a catapult). Notable examples of the obsolete usage which have survived to the present day are military engineering corps, e.g., the U.S. Army Corps of Engineers.</P>
  <p>The word "engine" itself is of even older origin, ultimately deriving from the Latin ingenium (c. 1250), meaning "innate quality, especially mental power, hence a clever invention."</p>
  <p>Later, as the design of civilian structures, such as bridges and buildings, matured as a technical discipline, the term civil engineering entered the lexicon as a way to distinguish between those specializing in the construction of such non-military projects and those involved in the discipline of military engineering.</p>
    It can be said that engineering structures are stageed in three parts which are;
  <li><u>Engineer structures of encient era;</u>

The Ancient Romans built aqueducts to bring a steady supply of clean and fresh water to cities and towns in the empire.
The pyramids in ancient Egypt, ziggurats of Mesopotamia, the Acropolis and Parthenon in Greece, the Roman aqueducts, Via Appia and Colosseum, Teotihuacán, and the Brihadeeswarar Temple of Thanjavur, among many others, stand as a testament to the ingenuity and skill of ancient civil and military engineers. Other monuments, no longer standing, such as the Hanging Gardens of Babylon and the Pharos of Alexandria, were important engineering achievements of their time and were considered among the Seven Wonders of the Ancient World.Ancient Greece developed machines in both civilian and military domains. The Antikythera mechanism, an early known mechanical analog computer, and the mechanical inventions of Archimedes, are examples of Greek mechanical engineering. Some of Archimedes' inventions as well as the Antikythera mechanism required sophisticated knowledge of differential gearing or epicyclic gearing, two key principles in machine theory that helped design the gear trains of the Industrial Revolution, and are still widely used today in diverse fields such as robotics and automotive engineering.

Ancient Chinese, Greek, Roman and Hunnic armies employed military machines and inventions such as artillery which was developed by the Greeks around the 4th century BC,[30] the trireme, the ballista and the catapult. In the Middle Ages, the trebuchet was developed.</li>
  <li><u>Engineer structures of middle ages;</u>
The earliest practical wind-powered machines, the windmill and wind pump, first appeared in the Muslim world during the Islamic Golden Age, in what are now Iran, Afghanistan, and Pakistan, by the 9th century AD. The earliest practical steam-powered machine was a steam jack driven by a steam turbine, described in 1551 by Taqi al-Din Muhammad ibn Ma'ruf in Ottoman Egypt.

The cotton gin was invented in India by the 6th century AD, d the spinning wheel was invented in the Islamic world by the early 11th century, both of which were fundamental to the growth of the cotton industry. The spinning wheel was also a precursor to the spinning jenny, which was a key development during the early Industrial Revolution in the 18th century. The earliest programmable machines were developed in the Muslim world. A music sequencer, a programmable musical instrument, was the earliest type of programmable machine. The first music sequencer was an automated flute player invented by the Banu Musa brothers, described in their Book of Ingenious Devices, in the 9th century. In 1206, Al-Jazari invented programmable automata/robots. He described four automaton musicians, including drummers operated by a programmable drum machine, where they could be made to play different rhythms and different drum patterns. The castle clock, a hydropowered mechanical astronomical clock invented by Al-Jazari, was the first programmable analog computer.</li>
  <li><u>Engineer structures of morden era;</u> The science of classical mechanics, sometimes called Newtonian mechanics, formed the scientific basis of much of modern engineering. With the rise of engineering as a profession in the 18th century, the term became more narrowly applied to fields in which mathematics and science were applied to these ends. Similarly, in addition to military and civil engineering, the fields then known as the mechanic arts became incorporated into engineering.

Canal building was an important engineering work during the early phases of the Industrial Revolution. The foundations of electrical engineering in the 1800s included the experiments of Alessandro Volta, Michael Faraday, Georg Ohm and others and the invention of the electric telegraph in 1816 and the electric motor in 1872. The theoretical work of James Maxwell (see: Maxwell's equations) and Heinrich Hertz in the late 19th century gave rise to the field of electronics. The later inventions of the vacuum tube and the transistor further accelerated the development of electronics to such an extent that electrical and electronics engineers currently outnumber their colleagues of any other engineering specialty. Chemical engineering developed in the late nineteenth century. Industrial scale manufacturing demanded new materials and new processes and by 1880 the need for large scale production of chemicals was such that a new industry was created, dedicated to the development and large scale manufacturing of chemicals in new industrial plants. The role of the chemical engineer was the design of these chemical plants and processes.</li>
  <section class="main-section" id="the_fundamental_basics">
    <header><strong>the fundamental basics</strong></header>
    <p>Like wise the way all exist things have a basics fundamentals, so as engineering have also the basic fundamentals. One might think it is not nessesary to know the basic fundamental of engineering before embacking on the journey but i tell you today that is on high advantage side to know and have the basic fundamentals in order to help you and make you to known of what you should be expecting on your way.</p>
    <P>Some of the  basic fundamentals list bellow will make your journey to be an engineer not only easier but also interesting; </P>
      <li><u> Knowledge of the core subject;</u></u>
The most basic ingredient that identifies you as an engineer is the knowledge in your field of study. A Mechanical Engineer, for example, needs to know the basics of Thermodynamics, Fluid Mechanics, Solid Mechanics, Machine Design, Manufacturing Processes, CAD/CAE, etc. An awareness of the latest technological developments in your own field of study, like 3D printing & Alternative Energy techniques for Mechanical Engineers, will build your identity as an engineer further. We suggest you to be updated on the developments in your field of engineering, irrespective of the career you choose.</li>
  <li><u>Information Literacy;</u>
We, and also the employers, understand very well (from personal experience, of course!) that a limited time of 4 years is not sufficient to learn and excel in everything that the industry demands from an engineer. Moreover, new "jobs" demanding new skills are being created every year. It is, therefore, very essential to be an information literate. Information literacy is the ability to identify the need for information and find resources (online/offline) to start and finish a project from scratch.</li>
  <li><u> Analytical and Creative thinking;</u>
Look around. Some of the most amazing gadgets and technologies are creative and, sometimes, simple engineering solutions to daily problems, starting from the smartphone to e-commerce. As engineers, you are expected to be creative enough to come up with innovative ideas and analytical enough to link knowledge from different areas to solve problems. Tinker with every new idea you encounter.</li>
  <li><u>Acquaintance with Computers & IT;</u>
The world is now transformed into a place where an understanding of computers and gadgets is no more a trade-skill, but a life-skill. A working knowledge in at least one programming language, the internet, mobile and web apps, social media etc. is as essential as proficiency in English</li>
  <li><u>Passion for learning;</u>The last and the most important characteristic that will make you not only a better engineer but a better person is the never-ending spirit for learning. Many eminent personalities (and "gods") are of the opinion that the day a human being stops learning is the day he dies! Let this single mantra drive your life and you will be successful at whatever you take up.</li>
  <li><u>computer and technology exoerience;</u>Having a knowladge is computer and technology contribute a huge sucess not only in enginerring field but in all round professional field due to the world's digital on this century. Having this information can give you an acess to work as a web developer in a company that base in engineering field. For those with no idea of web developement, it is a way of creating a webpage using HTML, CSS Aand JAVASCRIPT e.g;<br>

&lsaquo;p&rsaquo;electrical engineering&lsaquo;&sol;p&rsaquo;<br>
 &lsaquo;p&rsaquo;chemical engineering&lsaquo;&sol;p&rsaquo;<br>
  &lsaquo;p&rsaquo;mechanical engineering&lsaquo;&sol;p&rsaquo;<br>
   &lsaquo;p&rsaquo;industrial engineering&lsaquo;&sol;p&rsaquo;<br>  
  <section class="main-section" id="types_of_engineering">
    <header><strong>types of engineering</strong></header>
    <p>Engineering is a profession with several kinds of diversities. Though they all play similar roles, but even as that, there is still a different between them.</p>
    <p>Some of them are more significant to each other, and play almost the same roles on their work field. Sometimes they will be combine together in a project in order to deliver, this mainly happen in a mega-project. On the next section, we will list and discuss some of the engineering types one after the other.</p> 
  <section class="main-section" id="civil_engineering">
    <header><strong>civil engineering</strong></header>
Civil engineering is a professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment, including public works such as roads, bridges, canals, dams, airports, sewage systems, pipelines e.t.c .</p>
    <p>Civil engineering is the application of physical and scientific principles for solving the problems of society, and its history is intricately linked to advances in the understanding of physics and mathematics throughout history. Because civil engineering is a broad profession, including several specialized sub-disciplines, its history is linked to knowledge of structures, materials science, geography, geology, soils, hydrology, environmental science, mechanics, project management, and other fields.</p>
    <p>The first private college to teach civil engineering in the United States was Norwich University, founded in 1819 by Captain Alden Partridge. The first degree in civil engineering in the United States was awarded by Rensselaer Polytechnic Institute in 1835. The first such degree to be awarded to a woman was granted by Cornell University to Nora Stanton Blatch in 1905.

In the UK during the early 19th century, the division between civil engineering and military engineering (served by the Royal Military Academy, Woolwich), coupled with the demands of the Industrial Revolution, spawned new engineering education initiatives: the Class of Civil Engineering and Mining was founded at King's College London in 1838, mainly as a response to the growth of the railway system and the need for more qualified engineers, the private College for Civil Engineers in Putney was established in 1839, and the UK's first Chair of Engineering was established at the University of Glasgow in 1840.&lsaquo;p&rsaquo;civil engineering&lsaquo;&sol;p&rsaquo;<br> </p>
  <section class="main-section" id="electrical_engineering">
    <header><strong>electrical engineering</strong></header>
    <p>Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century.</p>
    <p>Electrical engineering is now divided into a wide range of different fields, including computer engineering, systems engineering, power engineering, telecommunications, radio-frequency engineering, signal processing, instrumentation, photovoltaic cells, electronics, and optics and photonics. Many of these disciplines overlap with other engineering branches, spanning a huge number of specializations including hardware engineering, power electronics, electromagnetics and waves, microwave engineering, nanotechnology, electrochemistry, renewable energies, mechatronics/control, and electrical materials science.</p>
    <p>Electricity has been a subject of scientific interest since at least the early-17th-century. William Gilbert was a prominent early electrical scientist, and was the first to draw a clear distinction between magnetism and static electricity. He is credited with establishing the term "electricity". He also designed the versorium: a device that detects the presence of statically charged objects. In 1762 Swedish professor Johan Wilcke invented a device later named electrophorus that produced a static electric charge. By 1800 Alessandro Volta had developed the voltaic pile, a forerunner of the electric battery.</p>
  <section class="main-section" id="chemical_engineering">
    <header><strong> chemical engineering</strong></header>
Chemical engineering is a certain type of engineering which deals with the study of operation and design of chemical plants as well as methods of improving production. Chemical engineers develop economical commercial processes to convert raw material into useful products. Chemical engineering uses principles of chemistry, physics, mathematics, biology, and economicsto efficiently use.</p>
    <p>In 1940s, it became clear that unit operations alone were insufficient in developing chemical reactors. While the predominance of unit operations in chemical engineering courses in Britain and the United States continued until the 1960s, transport phenomena started to experience greater focus. Along with other novel concepts, such as process systems engineering (PSE), a "second paradigm" was defined. Transport phenomena gave an analytical approach to chemical engineering while PSE focused on its synthetic elements, such as control system and process design. Developments in chemical engineering before and after World War II were mainly incited by the petrochemical industry; however, advances in other fields were made as well. Advancements in biochemical engineering in the 1940s, for example, found application in the pharmaceutical industry, and allowed for the mass production of various antibiotics, including penicillin and streptomycin. Meanwhile, progress in polymer science in the 1950s paved way for the "age of plastics". &lsaquo;p&rsaquo;chemical engineering&lsaquo;&sol;p&rsaquo;<br></p>

I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.

You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.

See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (’).

1 Like

It sounds like you are referring to user story 6

User Story #6: The .main-section elements should contain at least 5 code elements total (not each).

Looking at your code, I don’t see any code elements.

If you need help on how to use the html code element, I suggest reading about it in the documentation.

Hope that helps!

1 Like

thanks so much jwilkins for trying to help me out, i really appreciate for coming to my aids whenever i need one.

i would like to be in touch with you aside from here if you don’t mind because i want to show my little appreciation .

dm me on email; email redacted by moderator

right now i only have this one to solve which i have been finding difficult also please;


  1. On regular sized devices (laptops, desktops), the element with id=“navbar” should be shown on the left half of the screen. It should always be visible to the user and should remain stationary. You may need to enlarge the viewport or zoom out to ensure the navbar doesn’t scroll with the page content.

I have redacted your email address since these sites are indexed by google.

For the last user story, you need to use css.
I suggest you first read up on media queries and learn about the standard screen sizes.

The test wants you to have a fixed navbar on the left hand side of the screen for large devices.
You will need to write some css for that.

It should look like the fcc sample project where they have the navbar fixed on the left hand side.

Hope that helps!