To set the background color using jQuery, use the jQuery css() property. We will set background color on mouse hover with the jQuery on() method.ExampleYou can try to run the following color to set background color in jQuery.Live Demo $(document).ready(function(){     $("body").on({         mouseenter: function(){             $(this).css("background-color", "gray");         },       });     }); Move the mouse pointer on the page to change the background color.

To change the background color using jQuery, use the jQuery css() property. We will change background color on mouse hover with the jQuery on() and css() method. ExampleYou can try to run the following code to learn how to change background color using jQuery:Live Demo $(document).ready(function(){     $("body").on({         mouseenter: function(){             $(this).css("background-color", "gray");         },                   mouseleave: function(){             $(this).css("background-color", "red");         },                 dblclick: function(){             $(this).css("background-color", "yellow");         }     }); }); Double click and move the mouse pointer to change the background color.

To remove underline from text hyperlink on hover using jQuery, use the jQuery css() property. The color text-decoration property is used with value none.ExampleYou can try to run the following code to learn how to remove underline from text hyperlink:Live Demo           jQuery Text Decoration                              $(document).ready(function() {             $('a').hover(                                function () {                   $(this).css({"text-decoration":"none"});                });                          });                    a {            text-decoration: underline;          }                         Demo text                

To underline a hyperlink on hover using jQuery, use the jQuery css() property. The color text-decoration  property is used.ExampleYou can try to run the following code to learn how to underline a hyperlink on hover:Live Demo           jQuery Hyperlink Decoration                              $(document).ready(function() {             $('a').hover(                                function () {                   $(this).css({"text-decoration":"underline"});                });                          });                   a {            text-decoration: none;          }                         Demo text                

To change text decoration property with jQuery, use the jQuery css() property.ExampleYou can try to run the following code to change text-decoration property from underline to overline:Live Demo $(document).ready(function(){     $("p").on({         mouseenter: function(){         $(this).css({"text-decoration": "overline"});         }     });     }); p {    text-decoration: underline; } Move the mouse pointer on the text to remove underline and add overline.

To remove underline from a text in jQuery, use the jQuery css() method. The css property text-decoration property is used with none value.ExampleYou can try to run the following code to remove underline:Live Demo $(document).ready(function(){     $("p").on({         mouseenter: function(){         $(this).css({"text-decoration": "none"});         }     });     }); p {    text-decoration: underline; } Move the mouse pointer on the text to remove underline.

To make text bold, italic and underline using jQuery, use the jQuery css() method with the CSS properties font-style, font-weight and text-decoration. You can try to run the following code to learn how to make text bold, italic and underline using jQuery −ExampleLive Demo $(document).ready(function(){     $("p").on({         mouseenter: function(){         $(this).css({"font-style": "italic", "font-weight": "bold","text-decoration": "underline"});         }     });     }); Move the mouse pointer on the text to make text bold, italic and underline.

To change the font family and font size with jQuery, use the jQuery css() method. The css property font-family and font-size is used. You can try to run the following code to learn how to change font family and font size with jQuery −ExampleLive Demo $(document).ready(function() {    $("p").on({      mouseenter: function() {         $(this).css({"font-family": "Arial, Helvetica, sans-serif", "font-size": "200%"});      }    });     }); Move the mouse pointer on the text to change the font family and size.

To change the text color with jQuery, use the jQuery css() method. The color css property is used to change text color.ExampleYou can try to run the following code to learn how to change text color with jQuery −Live Demo $(document).ready(function(){     $("p").on({         mouseenter: function(){             $(this).css("color", "red");         }     });     }); Move the mouse pointer on the text to change the text color.

You cannot return variable value from jQuery event function. To understand the reason, let us see how data is passed, which was created in the event handler of a button click.ExampleLive Demo $(document).ready(function(){     var a=document.getElementById('demo');     a.addEventListener('click', function(){        var s='Hello World!';        var event = new CustomEvent('build', { 'detail': s });        this.dispatchEvent(event);      })     document.getElementById('parent').addEventListener('build', getData, true);     function getData(e){        alert(e.detail);     } }); Click me