Static/Fixed Sidebar and Fluid Content - html

Question

I have three DIVs, one is the header at the top which should be fixed (should not scroll), width 100%, height 50px; another is a sidebar to the left which needs to be 100% of browser's height, fixed width of 200px and another DIV for the main content to the right which will be fluid in width, that is 100% of the remaining width (total minus 200px).
Content in the main content DIV should scroll vertical as content grows, but the sidebar to the left and header DIV should remain as it is. YouTube's home page is the perfect example what I want to achieve. I tried all position types and widths, but no success. HTML is like this:
<div id="header"></div>
<div id="parent">
<div id="sidebar"></div>
<div id="main-content"></div>
</div>
Edit:
Basic CSS code I am trying is:
#header {
position: fixed;
width: 100%;
height: 50px;
}
#sidebar {
position: fixed;
width: 220px;
height: 100%;
}
#main-content {
position: relative;
left: 220px;
width: 100%;
height: 300px; /*This could be anything, content should scroll vertical*/
}

Answer 1

Simple css code :
body {
padding: 0;
margin: 0;
}
#header {
position: fixed;
top: 0px;
left: 0px;
right: 0px;
height: 50px;
background-color: red;
}
#sidebar {
position: fixed;
top: 0px;
left: 0px;
bottom: 0px;
width: 200px;
background-color: green;
}
#parent {
margin-top: 50px;
margin-left: 200px;
background-color: blue;
}
Example :
http://jsfiddle.net/rp4ss12b/
Your top bar and side bar need to be position: fixed;. Then your main content need to have a margin-top (in order not to be hidden by the top bar) and a margin-left (in order not to be hidden by the side bar).

Answer 2

You could do it like this:
html, body {
height:100%;
margin:0;
}
#header {
width: 100%;
height: 50px;
background-color: red;
position: fixed;
z-index:999;
}
#parent {
width:100%;
height:100%;
}
#sidebar {
padding-top:50px; /* padding-top must be the same as header height */
width:200px;
height:100%;
background-color: blue;
box-sizing:border-box;
position: fixed;
z-index:99;
}
#main-content {
position: relative;
width: 100%;
padding-left:200px; /* padding-left must be the same as sidebar width */
height: 300px; /* This could be anything, content should scroll vertical */
background: green;
box-sizing:border-box;
padding-top: 50px; /* padding-top must be the same as header height */
}
<div id="header"></div>
<div id="parent">
<div id="sidebar"></div>
<div id="main-content"></div>
</div>

Answer 3

Check this snippet, You can do this by using pure css as shown below or you can use display:inline-block or float elements but you need to set the width of right div using javascript.
html,body{width:100%;height:100%;margin:0;padding:0;}
#header{position:fixed;height:50px;width:100%;background:#000;top:0;left:0;}
#parent{background:red;width:100%;height:100%;display:table;border-collapse:collapse;}
#parent div{display:table-cell;padding-top:50px;}
#sidebar{width:200px;background:#444;color:#fff;}
#main-content{background:#ccc;padding:0;margin:0;}
<div id="header"></div>
<div id="parent">
<div id="sidebar">sadds</div>
<div id="main-content">dshajkashljk</div>
</div>