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2 Refactor JS and CSS to top- and bottom- sticky element to reduce scroll jank

I have a menu that is made both top- and bottom-sticky by Javascript.

(demo visible at [login to view URL] )

(It also scales continuously via Javascript, and changes layout by CSS, in response to screen size and orientation.)

But the scrolling is not quite smooth at the start and end of stickiness, and it shows too much scroll jank when implemented.

So I would like the code refactored to scroll more smoothly and retain the other functionality.

Rather than optimizing the existing Javascript, I would like a new method using some advanced CSS technique, or Waypoints, plus maybe a workaround for iOS browsers like Scroll Snap. In your bid message, please indicate what technologies you would try.

Also, could you please suggest how I should assess your level of effort and success on this project. For example, will you use the time tracking app, offer a performance guarantee of some sort (perhaps measured by the tool at [login to view URL] ), a list of code improvements, or something else?

This contract will include installation of the revised and new code on my web site at [login to view URL] , where the current menu is temporarily functioning. If there are other ways you would like to propose to improve scrolling on the main page there, I would like to hear about that too! Thank you.

Kĩ năng: CSS3, HTML5, Javascript, WordPress

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Về Bên Thuê:
( 10 nhận xét ) New Westminster, Canada

ID dự án: #16937005

Được trao cho:


Hello there!, I saw your other project, I was going to bid when you deleted it (I also thought it was a lot of money to be real xD) Anyways!, I took at look at your site, and I think 2 things, I know it's your si Thêm

$50 CAD trong 2 ngày
(6 Đánh Giá)

13 freelancer đang chào giá trung bình $65 cho công việc này


I have read through your project and I am incredibly interested in taking on your project. I am an experienced developer and graphic designer with a diploma in the field of web development. I have been working in the Thêm

$88 CAD trong 2 ngày
(164 Nhận xét)

Hi, I am ready to start it. But i have some questions for you. So kindly leave message for me, then ill discuss it in depth.

$60 CAD trong 1 ngày
(141 Nhận xét)

Hello Sir/Ma'am, Greetings of the day! So I'm interested in doing your work so finally would like to start work now. I'm ready for interview and feel free if you have any query and contact me anytime 24*7 will be a Thêm

$60 CAD trong 2 ngày
(120 Nhận xét)

Greeting Please provide me login details, I am expert ready to implement the sticky menu on yours website as per yours requirement. Surly provide you the bests of best service. Menu will be smooth as you are looking Thêm

$75 CAD trong 3 ngày
(39 Nhận xét)

Hi I am wordpress web developer having more than 6 year experience in website design & development. I am ready to fix 2 Refactor JS and CSS to top- and bottom- sticky element to reduce scroll jank please hav Thêm

$100 CAD trong 2 ngày
(21 Nhận xét)

Dear Sir! I make 2 Refactor JS and CSS to top- and bottom- sticky element to reduce scroll jank ++ This is my job. I'm ready to begin now. Pm for me. Please check my reviews and profile https://www.freelancer.com/u Thêm

$58 CAD trong 10 ngày
(20 Nhận xét)

Hi, As based on my initial review I can confirm its feasibility & as I am great fit technically and have a good understanding of the domain & your requirement.

$58 CAD trong 10 ngày
(11 Nhận xét)

hello, I have read your project description carefully. I have rich experiences in CSS3, HTML5, Javascript, WordPress and i can do it Contact me please. Thanks

$58 CAD trong 10 ngày
(4 Nhận xét)

Hello Sir, I'm ready to do it.I'm experienced in wordpress and have completed many projects in freelancer as a successful [login to view URL] want to continue in this way. So I need good review and more [login to view URL] can Thêm

$88 CAD trong 10 ngày
(6 Nhận xét)

Hi, I have Web Development expertise using Web 2.0 technologies - HTML 5, CSS 3, JavaScript, jQuery, and MVC frameworks (Angular 4). I have worked with Bootstrap 3 and 4 for design purposes building responsive web app Thêm

$58 CAD trong 10 ngày
(0 Nhận xét)

Dear Sir, I have 6+ years of experience working on similar jobs and really interested to do this project. I am available around the clock for any discussion and will provide many revisions till you get fully satisfied Thêm

$58 CAD trong 3 ngày
(0 Nhận xét)

I am currently working on a side project myslef: [login to view URL] and therefore doing the same things there and am expereience enough to solve this issue.

$40 CAD trong 10 ngày
(0 Nhận xét)