[SOLVED] How to apply an offset to a #link on another page

How to apply an offset to a #link on another page

I got a website which basically is 80% index.html plus a few minor subpages. Index.html is divided into few sections. However, the navigation has position:fixed and height of - say - 100px, so links like

<a href="#section">

need a 100px offset. I achieve it through jQuery (ill leave all ifs for specific sections out):

$("#navigation a").click(function() {
    event.preventDefault();
    var offset = $("#section1").offset().top - 100;
    $(window).scrollTop(offset);
}

The problem is that when i navigate to index.html from subpages, this trick won't work, so i must not use this function on subpages and simply "allow default".

Is there a way to navigate to a #section of an other html document with a proper offset (cant be hard coded)?

Solution

You can achieve this without Javascript.

Assumed on the index.html all targets having the class section. With this CSS snippet the fixed navigation does not hide any target.

body {
   padding-top: 60px;
   margin-top: 0px;
}

 #fixed-nav { 
   position:fixed;
   height:50px;
   line-height:50px;
   vertical-align:middle;    
   background:#000;
   top:0;
   left:0;
   right:0;
   color:#FFF;
   padding-left:5px;
}

#fixed-nav a {
  color: white;
  margin-right: 10px;
  text-decoration: none;
}

#sections .section {
  height:400px;
  padding-left:5px;
}

#sections .section:before { 
  display: block; 
  content: " "; 
  margin-top: -60px; 
  height: 60px; 
  visibility: hidden;

<div id="fixed-nav">
   <a href="#target-1">To target 1</a>
   <a href="#target-2">To target 2</a>
   <a href="#target-3">To target 3</a>
   <a href="#target-4">To target 4</a>
   <a href="#target-5">To target 5</a>
</div>

<div id="sections">
  <div class="section" id="target-1">
    Target 1
  </div>
  <div class="section" id="target-2">
    Target 2
  </div>
  <div class="section" id="target-3">
    Target 3
  </div>
  <div class="section" id="target-4">
    Target 4
  </div>
  <div class="section" id="target-5">
    Target 5
  </div>
</div>