jQuery fadeTo()
compare fadeTo speed
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Example of jQuery Fade-To Effect</title> <script src="https://code.jquery.com/jquery-1.12.4.min.js"></script> <style> p{/* ww w. j a v a 2 s . com*/ display: none; padding: 15px; background: #DDA0DD; } </style> <script> $(document).ready(function(){ // Fade to paragraphs with different opacity $(".to-btn").click(function(){ $("p.none").fadeTo("fast", 0); $("p.partial").fadeTo("slow", 0.5); $("p.complete").fadeTo(2000, 1); }); }); </script> </head> <body> <button type="button" class="to-btn">Fade To Hidden Paragraphs</button> <p class="none">This is a paragraph.</p> <p class="partial">This is another paragraph.</p> <p class="complete">This is one more paragraph.</p> </body> </html>