Use the default attribute to identify that the track is to be enabled, if you’re providing with two subtitle tracks for the video.ExampleYou can try the following code to implement the default attribute for tracks −                                                            Your browser does not support the video element.          

Use the colspan attribute to set the number of columns a table cell should span. You can try to run the following code to implement colspan attribute −                    table, th, td {             border: 1px solid black;          }                     Total Marks                Subject          Marks                       Maths             300                                 Java             450                                 Total Marks: 750                    

Use the cols attribute in HTML to display the visible width of a textarea. You can try to run the following code to implement cols attribute −Example                    This is a demo paragraph. This is a demo paragraph.          This is a demo paragraph. This is a demo paragraph.          

Use the color attribute in HTML to display the color of the text.Note − This attribute is not supported in HTML5.ExampleYou can try to run the following code to learn how to implement color attribute in HTML −           HTML Background Colors                                                    This is demo text.                                

The cite attribute allows you to add URL and explain why the text was deleted or inserted.ExampleYou can try to run the following code to implement cite attribute −           Define WordPress             WordPress is open source software you can use to create a beautiful website, blog, or app.    

Use the checked attribute to specify an element is to be pre-selected on page load. The attribute works with − .ExampleYou can try to run the following code to implement checked attribute in HTML − Live Demo           Which sports do you like?                 Football           Cricket           Hockey                    

Character encoding is a method of converting bytes into characters. To validate or display an HTML document properly, a program must choose a proper character encoding.Use the element, to set the charset attribute and specify the character encoding for the HTML document −                         Click following link       Welcome to Qries    

Use the border attribute in HTML to display the thickness of the border.Note − This attribute is not supported in HTML5.ExampleYou can try to run the following code to learn how to implement border attribute in HTML −           Cricketers                Name                       Sachin Tendulkar                                 Virat Kohli                     Use CSS instead, since the border attribute deprecated in HTML5.                    table, th, td {             border: 1px solid black;          }                     Cricketers                Indian Cricketers          Name                       Sachin Tendulkar                                 Virat Kohli                    

Use the autoplay attribute to set that the audio or video will start playing automatically as the page loads.ExampleYou can try to run the following code to implement autoplay attribute in HTML −                                        Your browser does not support the video element.          

Use the bgcolor attribute in HTML to display the background color of an element. It is used to control the background of an HTML element, specifically page body and table backgrounds.Note − This attribute is not supported in HTML5.ExampleYou can try to run the following code to learn how to implement bgcolor attribute in HTML −           HTML Background Colors                                                          This background is yellow                                                                              This background is sky blue                                                                              This background is green