html - Scroll within a fixed position overlay -


jsbin. click buttons on left. first 1 example of overlay doesn't require scroll (so works perfectly), second button nothing, , third button problem i'm describing. note copied/pasted zenpen style before main style in css tab.

i'm using bootstrap 3.0 , zenpen. idea have menu on left side of screen can click button hide , show different 'applications' or overlays. these overlays using position: fixed, can't zenpen overlay or else won't able scroll within it.

if change #wordinner { position: fixed; #wordinner { position: absolute; instead, able scroll, won't take entire page (instead centered in middle of screen normal container class. in jsbin, it's on position: absolute, change see problem i'm talking about.

the logic behind code use col-lg-12, , style same div take entire page (because width: 100% won't work.)

main css:

#wrap {     position: relative; } #main {     position: relative; }

zenpen's css (a link default zenpen css):

#word {     overflow: hidden;     text-shadow: none; }  #word b, #word strong {     color: #000; }  #wordinner {     position: fixed;     top: 0;     left: 0;     width: 100%;     height: 100%;      padding: 5px;     /* because nav 100 px, zenpen's icon menu 65px */     padding-left: 165px; }  #word {     overflow-y: scroll;  -webkit-transition: 600ms; -moz-transition: 600ms; -ms-transition: 600ms; -o-transition: 600ms;     transition: 600ms; }  #word section {     height: 100%;     margin: auto; }

and relevant html (link zenpen html: zenpen html):

 <div class="container" id="wrap">       <div class="container" id="main">       <!-- snip irrelevant html -->       </div>   </div>  <div class="container" id="apps">     <div class="row">        <div class="col-lg-12"  id="appsinner">          <div><a href="#" id="close_apps">close</a></div>          <input type="text" class="form-control" placeholder="search here" />        </div>     </div> </div>    <div class="container" id="word">     <div class="row">     <div class="col-lg-12 yin" id="wordinner" >     <div><a href="#" id="close_word">close</a></div>     <!-- snip zenpen html -->     </div>     </div>     </div>   </div>   </div>      <nav>     <ul>         <li><a href="#" class="btn light"  id="open_apps"><span class="entypo-search"></span></a><span class='button-text'>apps</span></li>         <li><a href="#" class="btn red"  id="home"><span class="entypo-home"></span></a><span class='button-text'>home</span></li>         <li><a href="#" class="btn green"  id="open_word"><span class="entypo-leaf"></span></a><span class='button-text'>word</span></li>     </ul>   </nav>

you set overflow on html, body overflow: hidden , set #wordinner { position: fixed; overflow: auto;. ensure there 1 visible scrollbar on right hand side of page, , when needed. if need overflow set visible other pages, set using jquery (since using anyway) when open , close #word app.

option 1 (using css only): jsbin

html, body {   overflow: hidden; }  #wordinner {     position: fixed;   overflow: auto;   ... }

option 2 (using css , jquery): jsbin

css

#wordinner {     position: fixed;   overflow: auto;   ... }

jquery

$("#open_word").click(function(event) {   event.preventdefault();      $("html, body").css("overflow", "hidden");   $("#word").show(); });  $("#close_word").click(function(event) {   event.preventdefault();   $("html, body").css("overflow", "visible");   $("#word").hide(); });

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