Hướng dẫn tạo nút Back To Top hiệu ứng tên lửa cho Blogspot


Hôm nay mình xin hướng dẫn các bạn tạo nút Back To Top hiệu ứng tên lửa dành cho Blogspot.

1. Vào mục Mẫu ---> Chỉnh sửa HTML và chèn đoạn CSS sau trước thẻ ]]></b:skin> hoặc </style>:

/* Back to Top Roket meluncur */
#scrolltop{display:none}
#rocketmeluncur{position:fixed;bottom:50px;z-index:7;display:none;visibility:hidden;width:26px;height:48px;right:25px;background:url(http://1.bp.blogspot.com/-UR9I7YEuEUY/VXIJn8MrBPI/AAAAAAAAKRE/qZObHBd5zIo/s1600/rocket.png) 50% 0 no-repeat;opacity:0;-webkit-transition:visibility .6s cubic-bezier(.6,.04,.98,.335),opacity .6s cubic-bezier(.6,.04,.98,.335),-webkit-transform .6s cubic-bezier(.6,.04,.98,.335);-moz-transition:visibility .6s cubic-bezier(.6,.04,.98,.335),opacity .6s cubic-bezier(.6,.04,.98,.335),-moz-transform .6s cubic-bezier(.6,.04,.98,.335);transition:visibility .6s cubic-bezier(.6,.04,.98,.335),opacity .6s cubic-bezier(.6,.04,.98,.335),transform .6s cubic-bezier(.6,.04,.98,.335)}
#rocketmeluncur i{display:block;margin-top:48px;height:14px;background:url(http://1.bp.blogspot.com/-UR9I7YEuEUY/VXIJn8MrBPI/AAAAAAAAKRE/qZObHBd5zIo/s1600/rocket.png) 50% -48px no-repeat;opacity:.5;-webkit-transition:-webkit-transform .2s;-moz-transition:-moz-transform .2s;transition:transform .2s;-webkit-transform-origin:50% 0;-moz-transform-origin:50% 0;transform-origin:50% 0}
#rocketmeluncur:hover{background-position:50% -62px}
#rocketmeluncur:hover i{background-position:50% 100%;-webkit-animation:flaming .7s infinite;-moz-animation:flaming .7s infinite;animation:flaming .7s infinite}#rocketmeluncur.showrocket{visibility:visible;opacity:1}
#rocketmeluncur.launchrocket{background-position:50% -62px;opacity:0;-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);transform:translateY(-800px);pointer-events:none}
#rocketmeluncur.launchrocket i{background-position:50% 100%;-webkit-transform:scale(1.4,3.2);-moz-transform:scale(1.4,3.2);transform:scale(1.4,3.2)}

Lưu ý: Bạn có thể tải lại ảnh theo đường link trên và lưu trữ hoặc thay đổi link tùy ý.

2. Chèn hai đoạn code sau trước thẻ </body>:

<a href="javascript:void(0);" id="rocketmeluncur" class="showrocket" ><i></i></a>

 <script type='text/javascript'>
//<![CDATA[
jQuery(window).scroll(function(){jQuery(window).scrollTop()<50?jQuery("#rocketmeluncur").slideUp(500):jQuery("#rocketmeluncur").slideDown(500);var e=jQuery("#ft")[0]?jQuery("#ft")[0]:jQuery(document.body)[0],t=$("rocketmeluncur"),n=(parseInt(document.documentElement.clientHeight),parseInt(document.body.getBoundingClientRect().top),parseInt(e.clientWidth)),r=t.clientWidth;if(1e3>n){var l=parseInt(fetchOffset(e).left);l=r>l?2*l-r:l,t.style.left=n+l+"px"}else t.style.left="auto",t.style.right="10px"}),jQuery("#rocketmeluncur").click(function(){jQuery("html, body").animate({scrollTop:"0px",display:"none"},{duration:600,easing:"linear"});var e=this;this.className+=" launchrocket",setTimeout(function(){e.className="showrocket"},800)});
//]]>
</script>