参考:stackoverflow – Does :before not work on img elements? CSS Image Sprites Link to W3Schools 以前常用于把多个 icon 放到 1 个 image 里. 通过background-image + position 调出图片然后显示某个区域而已 CSS Attribute Selectors Link to W3Schools [target] = 有 attribute "target" [target="_blan...
matches(".container, .wrapper")) { element.innerHTML = "This element matches either the \".container\" CSS selector or the \".wrapper\" selector."; } else { element.innerHTML = "This element does not match any of the selectors."; } </script> </body> </html> ...
CSS Image SpritesLink to W3Schools以前常用于把多个 icon 放到 1 个 image 里.通过background-image + position 调出图片然后显示某个区域而已CSS Attribute SelectorsLink to W3Schools[target] = 有 attribute "target"[target="_blank"] = 有 attribute "target" 同时 attribute value 是 "_blank"...
<h2>This is a heading</h2> <p>This is a paragraph.</p> <p><a href="https://www.w3schools.com/html/">This is a link</a></p> <p><a href="https://www.w3schools.com/css/">This is also link</a></p> </body> </html> ...
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML.
$(":root").css("background-color", "yellow"); Try it Yourself » Definition and UsageThe :root selector selects the document's root element. In HTML, the root element is always the <html> element.Syntax$(":root") ❮ jQuery Selectors...
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
jQuery Overview jQuery Selectors jQuery Events jQuery Effects jQuery HTML/CSS jQuery Traversing jQuery AJAX jQuery Misc jQuery Properties jQuery ajaxStop() Method❮ jQuery AJAX MethodsExampleTrigger an alert box when all AJAX requests have completed:$(document).ajaxStop(function(){ alert("All AJAX ...
jQuery Overview jQuery Selectors jQuery Events jQuery Effects jQuery HTML/CSS jQuery Traversing jQuery AJAX jQuery Misc jQuery Properties jQuery ajaxError() Method❮ jQuery AJAX MethodsExampleTrigger an alert box when an AJAX request fails:$(document).ajaxError(function(){ alert("An error occurred!
jQuery Overview jQuery Selectors jQuery Events jQuery Effects jQuery HTML/CSS jQuery Traversing jQuery AJAX jQuery Misc jQuery Properties jQuery ajaxSuccess() Method❮ jQuery AJAX MethodsExampleTrigger an alert box when an AJAX request completes successfully:$(document).ajaxSuccess(function(){ alert("...