Fixed position but relative to container

Question

I am trying to fix a div so it always sticks to the top of the screen  using   position  fixed  top  0px  right  0px    However  the div is inside a centered container  When I use position fixed it fixes the div relative to the browser window  such as it s up against the right side of the browser  Instead  it should be fixed relative to the container   I know that position absolute can be used to fix an element relative to the div  but when you scroll down the page the element vanishes and doesn t stick to the top as with position fixed   Is there a hack or workaround to achieve this

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I did something like that awhile back  I was pretty new to JavaScript  so I m sure you can do better  but here is a starting point   function fixxedtext         if  navigator appName indexOf  Microsoft      -1            if  document body offsetWidth  gt  960                var width   document body offsetWidth - 960              width   width   2              document getElementById  side   style marginRight   width    px                     if  document body offsetWidth  lt  960                var width   960 - document body offsetWidth              document getElementById  side   style marginRight    -    width    px                       else           if  window innerWidth  gt  960                var width   window innerWidth - 960              width   width   2              document getElementById  side   style marginRight   width    px                     if  window innerWidth  lt  960                var width   960 - window innerWidth              document getElementById  side   style marginRight    -    width    px                       window setTimeout  fixxedtext     2500      You will need to set your width  and then it gets the window width and changes the margin every few seconds  I know it is heavy  but it works

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It s possible if you use JavaScript  In this case  the jQuery plugin Sticky-Kit

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html        this div exists purely for the purpose of positioning the fixed div it contains     lt div class  fix-my-fixed-div-to-its-parent-not-the-body  gt         lt div class  im-fixed-within-my-container-div-zone  gt            my fixed content       lt  div gt    lt  div gt        css        wraps fixed div to get desired fixed outcome     fix-my-fixed-div-to-its-parent-not-the-body        float  right      im-fixed-within-my-container-div-zone       position  fixed      transform  translate -100

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Another weird solution to achieve a relative fixed position is converting your container into an iframe  that way your fixed element can be fixed to it s container s viewport and not the entire page

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I had to do this with an advertisement that my client wanted to sit outside of the content area  I simply did the following and it worked like a charm    lt div id  content  style  position relative  width 750px  margin 0 auto   gt     lt div id  leftOutsideAd  style  position absolute  top 0  left -150px   gt       lt a href     style  position fixed   gt  lt img src         gt  lt  a gt     lt  div gt   lt  div gt

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Disclaimer  This answers just the title  Fixed position but relative to container  For the actual use case the user is asking for position  sticky is the way to go   https   developer mozilla org en-US docs Web CSS position  It is positioned relative to the initial containing block established by the viewport  except when one of its ancestors has a transform  perspective  or filter property set to something other than none  You just need to add a transform to the container and the position of the fixed element will be relative to the container  I think a transform  translateX 0   should be enough

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I have the same issue  one of our team members gives me a solution  To allowed the div fix position and relative to other div  our solution is to use a father container wrap the fix div and scroll div     lt div class  container  gt     lt div class  scroll  gt  lt  div gt     lt div class  fix  gt  lt  div gt   lt  div gt    css   container     position  relative    flex 1    display flex      fix     prosition absolute

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The answer is yes  as long as you don t set left  0 or right  0 after you set the div position to fixed  http   jsfiddle net T2PL5 85  Checkout the sidebar div  It is fixed  but related to the parent  not to the window view point   x000D   x000D  body     background   ccc      wrapper     margin  0 auto    height  1400px    width  650px    background  green      sidebar     background-color   ddd    float  left    width  300px    height  100px    position  fixed      main     float  right    background-color  yellow    width  300px    height  1400px    x000D   lt div class  wrapper  gt wrapper    lt div class  sidebar  gt sidebar lt  div gt     lt div class  main  gt main lt  div gt   lt  div gt  x000D   x000D   x000D

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Yes  according to the specs  there is a way   While I agree that Graeme Blackwood s should be the accepted answer  because it practically solves the issue  it should be noted that a fixed element can be positioned relatively to its container   I noticed by accident that when applying  -webkit-transform  translateZ 0     to the body  it made a fixed child relative to it  instead of the viewport   So my fixed elements left and top properties were now relative to the container   So I did some research  and found that the issue was already been covered by Eric Meyer and even if it felt like a  trick   turns out that this is part of the specifications      For elements whose layout is governed by the CSS box model  any value   other than none for the transform results in the creation of both a   stacking context and a containing block  The object acts as a   containing block for fixed positioned descendants    http   www w3 org TR css3-transforms   So  if you apply any transformation to a parent element  it will become the containing block   But     The problem is that the implementation seems buggy creative  because the elements also stop behaving as fixed  even if this bit doesn t seem to be part of specification    The same behavior will be found in Safari  Chrome and Firefox  but not in IE11  where the fixed element will still remain fixed    Another interesting  undocumented  thing is that when a fixed element is contained inside a transformed element  while its top and left properties will now be related to the container  respecting the box-sizing property  its scrolling context will extend over the border of the element  as if box-sizing was set to border-box  For some creative out there  this could possibly become a plaything     TEST

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Yes it is possible as long as you don t set the position  top or left  etc   of your fixed element  you can still use margin to set a relative position  though   Simon Bos posted about this a while ago   However don t expect fixed element to scroll with non-fixed relatives   See a demo here

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The magic is to take the screen width minus the container width and divide it by 2    1400px is according to container max-width  left can be also right   fixed     position  fixed    right  calc  100vw - 1400px  2      Note  css calc   function is almost  but not 100  supported  For most use-cases it is definitely supported enough  Click here for more details Snippet  with a 300px container just to fit this website s widget    x000D   x000D   container     max-width  300px    margin-left  auto    margin-right  auto       fixed     position  fixed    right  calc  100vw - 300px  2        media screen and  max-width  300px      right  0px    x000D   lt div style  height  3000px  gt       lt div class  container  gt           lt button class  fixed  gt              FIXED CONTENT          lt  button gt      Lorem ipsum dolor sit amet consectetur adipisicing elit  Laborum  eum  Animi quidem accusamus minima vel  dolorem suscipit quia accusantium minus harum modi commodi distinctio  Iste voluptatum earum quam voluptate culpa ad  ipsum dolorum recusandae quis atque eligendi necessitatibus magnam nisi dolores beatae qui  Perspiciatis natus cum nostrum in quod odio sapiente doloremque rerum quo dolore tenetur facere  quisquam atque accusamus fugiat eligendi  deleniti nisi minus recusandae distinctio dignissimos  Dicta quos ipsum qui pariatur at vel veritatis veniam quisquam minus modi et voluptas aliquam laborum  cumque in quo magnam sapiente  Expedita ut dolore laboriosam tempora reprehenderit vero eaque blanditiis  cumque voluptatibus  velit nemo  veniam tenetur quisquam numquam adipisci quae odio repellendus neque incidunt  Cum odio corporis soluta voluptate nesciunt  quasi nobis deleniti neque porro expedita fugiat placeat alias autem pariatur animi error  dicta veritatis atque perspiciatis inventore tempora dolor ad  Mollitia in dolorem ipsam eos porro magni perspiciatis possimus maiores  itaque facere ut  Eos culpa eum error quia incidunt repellendus quam possimus  asperiores earum ipsum molestias dicta sint fugit atque veniam dolorum illo  Officia harum sint incidunt totam  reiciendis illum eos maxime sequi neque repellat quis  expedita eum  corporis quaerat nemo qui soluta aspernatur animi  Sint ad rem numquam omnis sit       lt  div gt    lt  div gt  x000D   x000D   x000D

User · Answer

This is easy  as per HTML below   The trick is to NOT use top or left on the element  div  with  position  fixed    If these are not specified  the  fixed content  element will appear RELATIVE to the enclosing element  the div with  position relative    INSTEAD OF relative to the browser window      lt div id  divTermsOfUse  style  width 870px  z-index  20  overflow auto   gt       lt div id  divCloser  style  position relative  left  852px   gt           lt div style  position fixed  z-index 22   gt               lt a href  javascript hideDiv  divTermsOfUse     gt                   lt span style  font-size 18pt  font-weight bold   gt X lt  span gt               lt  a gt           lt  div gt       lt  div gt       lt div gt    lt  -- container for    -- gt           lots of Text To Be Scrolled vertically             bhah  blah  blah       lt  div gt   lt  div gt    Above allowed me to locate a closing  X  button at the top of a lot of text in a div with vertical scrolling   The  X  sits in place  does not move with scrolled text and yet it does move left or right with the enclosing div container when the user resizes the width of the browser window   Thus it is  fixed  vertically  but positioned relative to the enclosing element horizontally   Before I got this working the  X  scrolled up and out of sight when I scrolled the text content down    Apologies for not providing my javascript hideDiv   function  but it would needlessly make this post longer   I opted to keep it as short as possible

User · Answer

When you use position fixed CSS rule and try to apply top left right bottom it position the element relative to window   A workaround is to use margin properties instead of top left right bottom

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With pure CSS you can t manage to do it  at least I haven t  However you can do it with jQuery very simply  I ll explain my problem  and with a little change you can use it   So for a start  I wanted my element to have a fixed top  from top of the window   and a left component to inherit from the parent element  because the parent element is centered   To set the left component  just put your element into the parent and set position relative for the parent element   Then you need to know how much from the top your element is when the a scroll bar is on top  y zero scrolled   there are two options again  First is that is static  some number  or you have to read it from the parent element   In my case it s 150 nbsp pixels from top static  So when you see 150 it s how much is the element from the top when we haven t scrolled   CSS   parent-element position relative    promo position absolute     jQuery    document  ready function       This check window scroll bar location on start     wtop parseInt   window  scrollTop             promo   css  top  150 wtop  px           window  scroll function        This is when the window is scrolling     wtop parseInt   window  scrollTop             promo   css  top  150 wtop  px

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Just take the top and left styles out of the fixed position div  Here s an example   lt div id  body  style  height 200   position  absolute  width  100     gt       lt div id  parent  style  display  block  margin  0px auto  width  200px   gt           lt div id  content  style  position  fixed   gt content lt  div gt       lt  div gt   lt  div gt     The  content div will be sit wherever the parent div sits  but will be fixed there

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Actually this is possible and the accepted answer only deals with centralising  which is straightforward enough  Also you really don t need to use JavaScript   This will let you deal with any scenario   Set everything up as you would if you want to position  absolute inside a position  relative container  and then create a new fixed position div inside the div with position  absolute  but do not set its top and left properties  It will then be fixed wherever you want it  relative to the container   For example    x000D   x000D     Main site body    x000D   wrapper   x000D      width  940px  x000D      margin  0 auto  x000D      position  relative     Ensure absolute positioned child elements are relative to this   x000D    x000D   x000D     Absolute positioned wrapper for the element you want to fix position    x000D   fixed-wrapper   x000D      width  220px  x000D      position  absolute  x000D      top  0  x000D      left  -240px     Move this out to the left of the site body  leaving a 20px gutter    x000D    x000D   x000D     The element you want to fix the position of    x000D   fixed   x000D      width  220px  x000D      position  fixed  x000D         Do not set top   left     x000D    x000D   lt div class  wrapper  gt  x000D       lt div class  fixed-wrapper  gt  x000D           lt div class  fixed  gt  x000D              Content in here will be fixed position  but 240px to the left of the site body  x000D           lt  div gt  x000D       lt  div gt  x000D   lt  div gt  x000D   x000D   x000D    Sadly  I was hoping this thread might solve my issue with Android s WebKit rendering box-shadow blur pixels as margins on fixed position elements  but it seems it s a bug  Anyway  I hope this helps

User · Answer

Short answer  no   It is now possible with CSS transform   See the edit below  Long answer  The problem with using  quot fixed quot  positioning is that it takes the element out of flow  thus it can t be re-positioned relative to its parent because it s as if it didn t have one   If  however  the container is of a fixed  known width  you can use something like   fixedContainer     position  fixed    width  600px    height  200px    left  50     top  0     margin-left  -300px    half the width      http   jsfiddle net HFjU6 1  Edit  03 2015   This is outdated information   It is now possible to center content of an dynamic size  horizontally and vertically  with the help of the magic of CSS3 transform   The same principle applies  but instead of using margin to offset your container  you can use translateX -50     This doesn t work with the above margin trick because you don t know how much to offset it unless the width is fixed and you can t use relative values  like 50   because it will be relative to the parent and not the element it s applied to   transform behaves differently   Its values are relative to the element they are applied to   Thus  50  for transform means half the width of the element  while 50  for margin is half of the parent s width  This is an IE9  solution Using similar code to the above example  I recreated the same scenario using completely dynamic width and height   fixedContainer       background-color  ddd      position  fixed      padding  2em      left  50       top  0       transform  translateX -50       If you want it to be centered  you can do that too   fixedContainer       background-color  ddd      position  fixed      padding  2em      left  50       top  50       transform  translate -50   -50       Demos  jsFiddle  Centered horizontally only jsFiddle  Centered both horizontally and vertically Original credit goes to user aaronk6 for pointing it out to me in this answer

User · Answer

You can give a try to my jQuery plugin  FixTo   Usage       mydiv   fixTo   centeredContainer

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Two HTML elements and pure CSS  modern browsers  See this jsFiddle example  Resize and see how the fixed elements even move with the floated elements they are in  Use the inner-most scroll bar to see how the scroll would work on a site  fixed elements staying fixed   As many here have stated  one key is not setting any positional settings on the fixed element  no top  right  bottom  or left values   Rather  we put all the fixed elements  note how the last box has four of them  first in the box they are to be positioned off of  like so   lt div class  quot reference quot  gt     lt div class  quot fixed quot  gt Test lt  div gt    Some other content in   lt  div gt   Then we use margin-top and margin-left to  quot move quot  them in relation to their container  something like as this CSS does   fixed       position  fixed      margin-top  200px     Push pull it up down        margin-left  200px     Push pull it right left       Note that because fixed elements ignore all other layout elements  the final container in our fiddle can have multiple fixed elements  and still have all those elements related to the top left corner  But this is only true if they are all placed first in the container  as this comparison fiddle shows that if dispersed within the container content  positioning becomes unreliable  Whether the wrapper is static  relative  or absolute in positioning  it does not matter

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I have created this jQuery plugin to solve a similar issue I was having where I had a centered container  tabular data   and I wanted the header to fix to the top of the page when the list was scrolled  yet I wanted it anchored to the tabular data so it would be wherever I put the container  centered  left  right  and also allow it to move left and right with the page when scrolled horizontally   Here is the link to this jQuery plugin that may solve this problem   https   github com bigspotteddog ScrollToFixed  The description of this plugin is as follows   This plugin is used to fix elements to the top of the page  if the element would have scrolled out of view  vertically  however  it does allow the element to continue to move left or right with the horizontal scroll   Given an option marginTop  the element will stop moving vertically upward once the vertical scroll has reached the target position  but  the element will still move horizontally as the page is scrolled left or right  Once the page has been scrolled back down passed the target position  the element will be restored to its original position on the page   This plugin has been tested in Firefox 3 4  Google Chrome 10 11  Safari 5  and Internet Explorer 8 9   Usage for your particular case    lt script src  scripts jquery-1 4 2 min js  type  text javascript  gt  lt  script gt   lt script src  scripts jquery-scrolltofixed-min js  type  text javascript  gt  lt  script gt     document  ready function             mydiv   scrollToFixed

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position  sticky that is a new way to position elements that is conceptually similar to position  fixed  The difference is that an element with position  sticky behaves like position  relative within its parent  until a given offset threshold is met in the viewport     In Chrome 56  currently beta as of December 2016  stable in Jan 2017  position  sticky is now back   https   developers google com web updates 2016 12 position-sticky  More details are in Stick your landings  position  sticky lands in WebKit

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2019 SOLUTION  You can use position  sticky property    Here is an example CODEPEN demonstrating the usage and also how it differs from position  fixed    How it behaves is explained below    An element with sticky position is positioned based on the user s scroll position  It basically acts like position  relative until an element is scrolled beyond a specific offset  in which case it turns into position  fixed  When it is scrolled back it gets back to its previous  relative  position  It effects the flow of other elements in the page ie occupies a specific space on the page just like position  relative   If it is defined inside some container  it is positioned with respect to that container  If the container has some overflow scroll   depending on the scroll offset it turns into position fixed    So if you want to achieve the fixed functionality but inside a container  use sticky

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I created a jsfiddle to demostrate how this works using transform   HTML   lt div class  left  gt      Content  lt  div gt   lt div class  right  gt   lt div class  fixedContainer  gt      X  lt  div gt      Side bar  lt  div gt    CSS  body     margin  0     left     width  77     background  teal    height  2000px     right     width  23     background  yellow    height  100vh    position  fixed    right  0    top  0     fixedContainer       background-color  ddd      position  fixed      padding  2em        right  0      top  0       transform  translateX -100px       jQuery      fixedContainer   on  click   function             right   animate   width    0px           left   animate   width    100            https   jsfiddle net bx6ktwnn 1

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Check this    lt html xmlns  http   www w3 org 1999 xhtml  gt       lt head gt           lt title gt  lt  title gt       lt  head gt       lt body style  width  1000px  important margin-left  auto margin-right  auto  gt           lt div style  width  100px  height  100px  background-color   ccc  position fixed   gt           lt  div gt           lt div id  1  style  width  100   height  600px  background-color   800000  gt           lt  div gt           lt div id  2  style  width  100   height  600px  background-color   100000  gt           lt  div gt           lt div id  3  style  width  100   height  600px  background-color   400000  gt           lt  div gt       lt  body gt   lt  html gt

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My project is  NET ASP Core 2 MVC Angular 4 template with Bootstrap 4   Adding  sticky-top  into main app component html  i e  app component html  on the first row worked  as follows    x000D   x000D   lt div class  row sticky-top  gt  x000D       lt div class  col-sm-12  gt  x000D           lt nav-menu-top gt  lt  nav-menu-top gt  x000D       lt  div gt  x000D   lt  div gt  x000D   lt div class  row  gt  x000D       lt div class  col-sm-3  gt  x000D           lt nav-menu gt  lt  nav-menu gt  x000D       lt  div gt  x000D       lt div class  col-sm-9 body-content  gt  x000D           lt router-outlet gt  lt  router-outlet gt  x000D       lt  div gt  x000D   lt  div gt  x000D   x000D   x000D    Is that the convention or did I oversimplify this

[css] Fixed position but relative to container

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