In this article, we will create Horizontal and Vertical Tabs using JavaScript.
Tabs can be used for displaying large amounts of content on a single page in an organized manner. We can design single-page tabs using HTML, CSS, and JavaScript. HTML elements are used to design the structure of the tabs and their content in paragraphs. The styling is performed using CSS. With the click of each tab button, the tabs display their respective content. This is done using JavaScript.
Horizontal Tabs: The following code demonstrates the simple HTML structure with tabs and its contents in the form of a paragraph. On click of each tab, it calls the displayContent() method implemented in the “script.js” file given below.
Example: The below example shows the creation of horizontal tabs.
HTML
<!DOCTYPE html> <html> <head> <link rel="stylesheet" href="style.css"> <script src="script.js"></script> </head> <body> <h2 style="color:green"> neveropen Horizontal tabs </h2> <!-- Link to each tab with onclick event --> <div id="tabsDiv"> <button class="linkClass" onclick= "displayContent(event, 'interview')"> Interview </button> <button class="linkClass" onclick= "displayContent(event, 'practice')"> Practice </button> <button class="linkClass" onclick= "displayContent(event, 'python')"> Python </button> <button class="linkClass" onclick= "displayContent(event, 'algorithms')"> Algorithms </button> <button class="linkClass" onclick= "displayContent(event, 'machine')"> Machine Learning </button> </div> <!-- Content for each HTML tab --> <div id="interview" class="contentClass"> <h3>Interview</h3> <p> Also, in Asymptotic analysis, we always talk about input sizes larger than a constant value. It might be possible that those large inputs are never given to your software and an algorithm which is asymptotically slower, always performs better for your particular situation. So, you may end up choosing an algorithm that is Asymptotically slower but faster for your software. </p> </div> <div id="practice" class="contentClass"> <h3>Practice</h3> <p> Asymptotic Analysis is the big idea that handles above issues in analyzing algorithms. In Asymptotic Analysis, we evaluate the performance of an algorithm in terms of input size (we don’t measure the actual running time). We calculate, how does the time (or space) taken by an algorithm increases with the input size. </p> </div> <div id="python" class="contentClass"> <h3>Python</h3> <p> Python is a high-level, general-purpose and a very popular programming language. Python programming language (latest Python 3) is being used in web development, Machine Learning applications, along with all cutting edge technology in Software Industry. Python Programming Language is very well suited for Beginners, also for experienced programmers with other programming languages like C++ and Java. </p> </div> <div id="algorithms" class="contentClass"> <h3>Greedy Algorithms</h3> <p> Greedy is an algorithmic paradigm that builds up a solution piece by piece, always choosing the next piece that offers the most obvious and immediate benefit. So the problems where choosing locally optimal also leads to global solution are best fit for Greedy. </p> </div> <div id="machine" class="contentClass"> <h3>Machine Learning</h3> <p> Machine Learning is the field of study that gives computers the capability to learn without being explicitly programmed. ML is one of the most exciting technologies that one would have ever come across. As it is evident from the name, it gives the computer that makes it more similar to humans: The ability to learn. Machine learning is actively being used today, perhaps in many more places than one would expect. </p> </div> </body> </html> |
CSS
h3 { text-align: left; } /* Button to open the content */.linkclass { float: left; cursor: pointer; padding: 10px 15px 10px 10px; background-color: light-grey; } /* Button styling on mouse hover */#tabsDiv a:hover { color: black; background-color: #e9e9e9; font-size: 16px; } /* Change the color of the button */button.active { background-color: #c0c0c0; } /* Content for button tabs*/.contentClass { display: none; padding: 10px 16px; border: 2px solid #c0c0c0; } |
Javascript
function displayContent(event, contentNameID) { let content = document.getElementsByClassName("contentClass"); let totalCount = content.length; // Loop through the content class // and hide the tabs first for (let count = 0; count < totalCount; count++) { content[count].style.display = "none"; } let links = document.getElementsByClassName("linkClass"); totalLinks = links.length; // Loop through the links and // remove the active class for (let count = 0; count < totalLinks; count++) { links[count].classList.remove("active"); } // Display the current tab document.getElementById(contentNameID) .style.display = "block"; // Add the active class to the current tab event.currentTarget.classList.add("active"); } |
Output: Click here to check the live Output.
Vertical Tabs: The tabs can be made vertical by changing the HTML structure and replacing the CSS stylesheet with a modified one used for the vertical tabs design. The following code demonstrates the vertical tabs.
Example: This example shows the creation of vertical tabs.
HTML
<body> <h2 style="color:green"> neveropen Vertical tabs </h2> <div id="tabsDiv"> <div id="interview" class="contentClass"> <h3>Interview</h3> <p> Also, in Asymptotic analysis, we always talk about input sizes larger than a constant value. It might be possible that those large inputs are never given to your software and an algorithm which is asymptotically slower, always performs better for your particular situation. So, you may end up choosing an algorithm that is Asymptotically slower but faster for your software. </p> </div> <div id="practice" class="contentClass"> <h3>Practice</h3> <p> Asymptotic Analysis is the big idea that handles above issues in analyzing algorithms. In Asymptotic Analysis, we evaluate the performance of an algorithm in terms of input size (we don’t measure the actual running time). We calculate, how does the time (or space) taken by an algorithm increases with the input size. </p> </div> <div id="python" class="contentClass"> <h3>Python</h3> <p> Python is a high-level, general-purpose and a very popular programming language. Python programming language (latest Python 3) is being used in web development, Machine Learning applications, along with all cutting edge technology in Software Industry. Python Programming Language is very well suited for Beginners, also for experienced programmers with other programming languages like C++ and Java. </p> </div> <div id="algorithms" class="contentClass"> <h3>Greedy Algorithms</h3> <p> Greedy is an algorithmic paradigm that builds up a solution piece by piece,always choosing the next piece that offers the most obvious and immediate benefit. So the problems where choosing locally optimal also leads to global solution are best fit for Greedy. </p> </div> <ul class="ulClass" style="height:300px"> <li style="list-style-type:none;"> <button class="linkClass" onclick= "displayContent(event, 'interview')"> Interview </button> </li> <li style="list-style-type:none;"> <button class="linkClass" onclick= "displayContent(event, 'practice')"> Practice </button> </li> <li style="list-style-type:none;"> <button class="linkClass" onclick= "displayContent(event, 'python')"> Python </button> </li> <li style="list-style-type:none;"> <button class="linkClass" onclick= "displayContent(event, 'algorithms')"> Algorithms </button> </li> </ul> </div> </body> </html> |
CSS
* { box-sizing: border-box; } #tabsDiv { height: 300px; border: 2px solid #c0c0c0; } #tabsDiv ul { height: 300px; padding: 0px 5px; } #tabsDiv li { width: 15%; height: 60px; } #tabsDiv button { float: left; border: 1px solid #c0c0c0; background-color: #f1f0f4; } /* Button to open the content */#tabsDiv button { display: block; background-color: inherit; color: black; padding: 25px 15px; width: 100%; text-align: left; cursor: pointer; } /* Button styling on mouse hover */#tabsDiv button:hover { background-color: #d1d1d1; color: lime; } #tabsDiv button.active { background-color: #c0c0c0; } /* Content for tabs*/.contentClass { display: none; position: absolute; left: 18%; padding: 0px 15px; width: 70%; border-style: none; height: 300px; } |
Javascript
function displayContent(event, contentNameID) { let content = document.getElementsByClassName("contentClass"); let totalCount = content.length; // Loop through the content class // and hide the tabs first for (let count = 0; count < totalCount; count++) { content[count].style.display = "none"; } let links = document.getElementsByClassName("linkClass"); totalLinks = links.length; // Loop through the links and // remove the active class for (let count = 0; count < totalLinks; count++) { links[count].classList.remove("active"); } // Display the current tab document.getElementById(contentNameID) .style.display = "block"; // Add the active class to the current tab event.currentTarget.classList.add("active"); } |
Output: Click here to check the live Output.
