CSS - want to remove a blank space but have no idea how to get rid of it?

Tags: html,html5,css3,css-float

Problem :

OK so here is my code, I don't understand why the first blank space is appearing to the left hand side of the page.


.header-left ol{
    width: auto;
    float: left;
    display: block;
    background-color: #6899D3;      

.header-left li{

.header-left a {
    height: 50px;
    min-width: 100px;
    overflow: auto;
    border-radius: 20px;

.header-left a:hover {

#nav1 a:hover { background-color: #FF5B0D; }    

#nav2  a:hover {    background-color:#00FF40;}

#nav3  a:hover {    background-color:#FF0080;}

#nav4  a:hover {    background-color:#00CCFF;}

#nav5  a:hover { background-color: #FFFF00; }


<div class="header-left">
    <li id="nav1"><a href="http://www.google.com">a</a></li>
    <li id="nav2"><a href="http://www.google.com">b</a></li>
    <li id="nav3"><a href="http://www.google.com">c</a></li>
    <li id="nav4"><a href="http://www.google.com">d</a></li> 
    <li id="nav5"><a href="http://www.google.com">e</a></li>

Solution :

You need to reset the natural padding and margin of the body and ol. Set:

    margin: 0;
    padding: 0;

.header-left ol{
    width: auto;
    float: left;
    display: block;
    background-color: #6899D3;        
    margin: 0; //RESET DEFAULT
    padding: 0; // RESET DEFAULT

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