HTML - Wikitechy https://www.wikitechy.com/interview-questions/category/html/ Interview Questions Thu, 29 Feb 2024 13:36:10 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png HTML - Wikitechy https://www.wikitechy.com/interview-questions/category/html/ 32 32 What is a marquee tag ? https://www.wikitechy.com/interview-questions/html/what-is-a-marquee-tag/ https://www.wikitechy.com/interview-questions/html/what-is-a-marquee-tag/#respond Thu, 27 Oct 2022 05:40:15 +0000 https://www.wikitechy.com/interview-questions/?p=5067
  • In HTML it is used to create scrolling text or image in a webpage.
  • It scrolls either from vertically top to bottom or bottom to top or horizontally left to right or right to left.
  • The marquee element comes in pairs which means that the tag has opening and closing elements.
  • The marquee is divided into two methods they are start (), stop ().
  • Start () is used to start the scrolling of the Marquee Tag.
  • Stop () is used to stop the scrolling the marquee tag.

    • Syntax

    <marquee>
       <--- contents --->
    </marquee>

    Sample Code

    <!DOCTYPE html>
    <html>
    <head>
        <title>Marquee Tag</title>
        <style>
        .main {
            text-align:center;
        }
        .marq {
            padding-top:30px;
            padding-bottom:30px;
        }
        .geek1 {
            font-size:36px;
            font-weight:bold;
            color:blue;
            padding-bottom:10px;
        }
        </style>
    </head>
     
    <body>
        <div class = "main">
        <marquee class="marq" bgcolor = "Pink" direction = "left" loop="" >
            <div class="geek1">Welcome to Wikitechy</div>
            <div class="geek2">Kaashiv Infotech</div>
        </marquee>
        </div>
    </body>
    </html>

    Output

    ]]>     https://www.wikitechy.com/interview-questions/html/what-is-a-marquee-tag/feed/ 0     What is the datalist tag in HTML ? https://www.wikitechy.com/interview-questions/html/what-is-the-datalist-tag-in-html/ https://www.wikitechy.com/interview-questions/html/what-is-the-datalist-tag-in-html/#respond Thu, 27 Oct 2022 05:27:42 +0000 https://www.wikitechy.com/interview-questions/?p=5064
  • In HTML <datalist> tag is used to provide autocomplete feature in the files.
  • Users can easily fill the data in the forms using select the data because it is used by an input tag.
  • It provides a list of predefined options for the users to select data.

    • Sample Code

    <!DOCTYPE html>
    <html>
    <body>

    <h1>The datalist element</h1>

    <form action="/action_page.php" method="get">
      <label for="browser">Choose your browser from the list:</label>
      <input list="browsers" name="browser" id="browser">
      <datalist id="browsers">
        <option value="Edge">
        <option value="Firefox">
        <option value="Chrome">
        <option value="Opera">
        <option value="Safari">
      </datalist>
      <input type="submit">
    </form>

    <p><strong>Note:</strong> The datalist tag is not supported in Safari 12.0 (or earlier).</p>

    </body>
    </html>

    Output

    ]]>     https://www.wikitechy.com/interview-questions/html/what-is-the-datalist-tag-in-html/feed/ 0     How to Insert an Image in HTML ? https://www.wikitechy.com/interview-questions/html/how-to-insert-an-image-in-html/ https://www.wikitechy.com/interview-questions/html/how-to-insert-an-image-in-html/#respond Wed, 26 Oct 2022 12:16:03 +0000 https://www.wikitechy.com/interview-questions/?p=5061
  • In HTML document we can use different fonts and lists.
  • For look more attractive we can add more graphics to make the document.
  • Web browsers support a number of graphic formats, there are three types of formats widely used they are Graphics Interchange Format (GIF), Joint Photographic Expert Group (JPEG), Portable Network Graphics (PNG).
  • Graphics Interchange Format (GIF) is the best format displaying images designed with a graphics program.
  • Joint Photographic Expert Group (JPEG) is the best format for photographs.
  • Portable Network Graphics (PNG) is the best format for images with transparency or the low color count.
  • In HTML document <img> tag specifies an image to be displayed.

    • Inserting an image with CSS

    Sample Code

    <!DOCTYPE html>
    <html>
        <style>
            image{border:4px solid orange; width: 120px;height: 100px;}
            h1{text-transform:uppercase}
        </style>
    <head>
        <title>
            HTML frame scrolling Attribute
        </title>
    </head>
    <body>
        <h1>Inserting Image</h1>
        <img src="wikitechy.png" alt="image is not available">
    </body>
    </html>

    Output

    Inserting an Image without the CSS

    Sample Code

    <!DOCTYPE html>
    <head>
        <title>
            HTML frame scrolling Attribute
        </title>
    </head>
    <body>
        <h1>Inserting Image</h1>
        <img src="wikitechy.png" alt="image is not available" width="120px" height="100px">
    </body>
    </html>

    Output

     

    ]]>     https://www.wikitechy.com/interview-questions/html/how-to-insert-an-image-in-html/feed/ 0     How to Align Text in HTML ? https://www.wikitechy.com/interview-questions/html/how-to-align-text-in-html/ https://www.wikitechy.com/interview-questions/html/how-to-align-text-in-html/#respond Wed, 26 Oct 2022 12:01:25 +0000 https://www.wikitechy.com/interview-questions/?p=5056
  • By using markup language, HTML is used to design webpages.
  • It defines the link between the webpages.
  • It defines the structure of webpages where markup language is used to define the text document within tag.
  • In required format HTML is used by the browser to manipulate text, images, and other content to display.
  • By using the text-align property, we can change the alignment of the text.
  • We can align the text in the Left, Right and Center.
  • The text alignment can be done with HTML Attribute tag and Cascade Style Sheet.
  • In Webpage, HTML allows the use of these CSS to perform changes in the style of the content.
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    • Align text to left

    Sample Code

    <!DOCTYPE html>
    <html>
    <body>

    <h1 style="text-align:left;">Welcome to Wikitechy</h1>
    <p style="text-align:left;">Hi this is Venkat .</p>

    </body>
    </html>

    Output

    Align text to Right

     Sample Code

    <!DOCTYPE html>
    <html>
    <body>

    <h1 style="text-align:right;">Welcome to Wikitechy</h1>
    <p style="text-align:right;">Hi this is Venkat .</p>

    </body>
    </html>

    Output

    Align text to Center

    Sample Code

    <!DOCTYPE html>
    <html>
    <body>

    <h1 style="text-align:center;">Welcome to Wikitechy</h1>
    <p style="text-align: center;">Hi this is Venkat .</p>

    </body>
    </html>

    Output

    ]]>     https://www.wikitechy.com/interview-questions/html/how-to-align-text-in-html/feed/ 0     How do you add buttons in HTML ? https://www.wikitechy.com/interview-questions/html/how-do-you-add-buttons-in-html/ https://www.wikitechy.com/interview-questions/html/how-do-you-add-buttons-in-html/#respond Wed, 26 Oct 2022 11:45:14 +0000 https://www.wikitechy.com/interview-questions/?p=5053
  • In HTML <button> tag is used to clickable button within form on your webpage.
  • We can put content like image or text within the <button>to</button> tag.
  • For <button> tag we should always specify the type attribute.
  • The button element is used for various browsers using different default type.
  • Button tag can be used inside and outside the form in HTML.
  • It works as the submit button and also reset button, while if we use it inside the form.
  • It can call JS on it, while if weuse it outside the form.
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    • Sample Code

    <!DOCTYPE html>
    <html>
    <body>

    <h1>Welcome to Wikitechy</h1>

    <button type="button" onclick="alert('Hello world!')">Click Me!</button>
     
    </body>
    </html>

    Output

    ]]>     https://www.wikitechy.com/interview-questions/html/how-do-you-add-buttons-in-html/feed/ 0     What are the different types of storage in HTML5 ? https://www.wikitechy.com/interview-questions/html/what-are-the-different-types-of-storage-in-html5/ https://www.wikitechy.com/interview-questions/html/what-are-the-different-types-of-storage-in-html5/#respond Wed, 26 Oct 2022 11:34:59 +0000 https://www.wikitechy.com/interview-questions/?p=5049
  • In HTML5, web storage is one of the great features. In Web storage, web applications can locally store data within the browser on the client side.
  • It is sometimes known as DOM storage and stores data in the form of key/value pair on the browser.
  • Web storage is better and faster than cookies storage, and storing data is similar to cookies.
  • Similarly, Web Storage can use storage space of up to 5MB per domain.
  • It is faster than cookies storage because It will not send data to the server side.
  • At web storage cookies data expires after some time or session but data stored by local Storage never expires.
  • There are two types of web storage, they are;
    • Local Storage
    • Session Storage
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    • Local Storage

    • In this the local Storage object stores data locally within the browser.
    • The data stored by local Storage object does not have any expiration date.
    • The stored data will not be deleted if the browser is reopened or closed.
    • The key/values are always stored as String, and can be accessed with localStorage.setItem() and localStorage.getItem() methods.

    Sample Code

    <!DOCTYPE html>
    <html>
    <head>
      <title>Web Storage API</title>
      <style>
        body{
          color: blue;
          text-align: center;
          font-size: 30px;
          margin-top: 30px;
          font-style: italic;
        }
      </style>
    </head>
    <body>
    <script>
     if(typeof(Storage)!=="undefined") {
      localStorage.setItem("name","Venkat");
      localStorage.setItem("Country", "India");
       document.write("Hi this is"+" "+localStorage.name+" "+"from" +" "+ localStorage.Country);
    }
     else{
      alert("Sorry! your browser is not supporting the browser")
     }
    </script>
    </body>
    </html>

    Output

    Session Storage

    • The session storage is same as local storage, but session storage stores data only for one session.
    • If you close the browser, then data will be deleted or lost.

    Sample Code

    <!DOCTYPE html>
    <html>
    <head>
    <script>
    function clickCounter() {
      if (typeof(Storage) !== "undefined") {
        if (sessionStorage.clickcount) {
          sessionStorage.clickcount = Number(sessionStorage.clickcount)+1;
        } else {
          sessionStorage.clickcount = 1;
        }
        document.getElementById("result").innerHTML = "You have clicked the button " + sessionStorage.clickcount + " time(s) in this session.";
      } else {
        document.getElementById("result").innerHTML = "Sorry, your browser does not support web storage...";
      }
    }
    </script>
    </head>
    <body>

    <p><button onclick="clickCounter()" type="button">Click me!</button></p>
    <div id="result"></div>
    <p>Click the button to see the counter increase.</p>
    <p>Close the browser tab (or window), and try again, and the counter is reset.</p>

    </body>
    </html>

    Output

    ]]>     https://www.wikitechy.com/interview-questions/html/what-are-the-different-types-of-storage-in-html5/feed/ 0