Use the onmousedown attribute to in HTML to execute a script when a mouse button is pressed down on an element.ExampleYou can try to run the following code to implement onmousedown attribute −                    This is demo heading.             Click above and then release.                function mouseDown() {             document.getElementById("myid").style.color = "yellow";          }          function mouseUp() {             document.getElementById("myid").style.color = "blue";          }          

Use the http-equiv attribute to get the HTTP header for the information of the content attribute in HTML.ExampleYou can try to run the following code to implement http-equiv attribute −           HTML http-equiv attribute                                 Document content goes here    

Use the hreflang attribute to set the language of the linked document in HTML.ExampleYou can try to run the following code to implement the hreflang attribute −           HTML hreflang attribute               Database Tutorial:       DBMS    

Use the onratechange attribute to execute a script each time the playback rate changes in HTML in HTML.ExampleYou can try to run the following code to implement onratechange attribute − Live Demo                                        Your browser does not support the video element.             Change the speed of the video                      function display() {             document.getElementById("test").innerHTML = "Speed: " + document.getElementById("myid").playbackRate;          }          function update(ob) {             document.getElementById("myid").playbackRate = ob.value;          }           Output

Use the href attribute to specify the URL of the page the link goes to in HTML.ExampleYou can try to run the following code to implement href attribute −           HTML href attribute                        Tutorials Point Library of Tutorials          

Use the onclick attribute to execute a script when the element is clicked in HTML.ExampleYou can try to run the following code to implement onclick attribute −           Click                      function display() {             document.getElementById("test").innerHTML = "You clicked the button!";          }          

Use the contextmenu attribute in HTML5 to execute a script when a context menu is fied. A context menu generates when a user right-clicks. ExampleYou can try to run the following code to implement contextmenu attribute −           HTML menuitem Tag                        Right click inside here....                                                                              

Use the onprogress attribute to execute a script when the browser is in the process of getting the media data in HTML.ExampleYou can try to run the following code to implement onprogress attribute −                                        Your browser does not support HTML5 video.                      function display() {             alert("Started");          }          

Use the HTML onafterprint attribute to execute a script after the document is printed or it is printing.ExampleYou can try to run the following code to implement onafterprint attribute −                    function display() {             alert("Success!");          }          

Use the usemap attribute to specify an image as a client-side image-map in HTML. You can try to run the following code to implement usemap attribute −Example           HTML map Tag