<html> <head> <title>Ma super page</title> <head> <body> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> </body> </html>
#scrollUp { position: fixed; bottom : 10px; right: -100px; opacity: 0.5; }
<link href='to-top.css' rel='stylesheet' type='text/css'>
jQuery(function(){ $(function () { $(window).scroll(function () { //Fonction appelée quand on descend la page if ($(this).scrollTop() > 200 ) { // Quand on est à 200pixels du haut de page, $('#scrollUp').css('right','10px'); // Replace à 10pixels de la droite l'image } else { $('#scrollUp').removeAttr( 'style' ); // Enlève les attributs CSS affectés par javascript } }); }); });
<html> <head> <style> #scrollUp { position: fixed; bottom : 10px; right: -100px; opacity: 0.5; } </style> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js"></script> <script> jQuery(function(){ $(function () { $(window).scroll(function () { if ($(this).scrollTop() > 200 ) { $('#scrollUp').css('right','10px'); } else { $('#scrollUp').removeAttr( 'style' ); } }); }); }); </script> </head> <body> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <h2>Du texte</h2> <div id="scrollUp"> <a href="#top"><img src="to_top.png"/></a> </div> </body> </html>