css - White bar between my nav bar and main text? -

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after looking on stackoverflow long not find answer question, that's why asking instead!

there's strange white part between navigation bar , main container, tested typing under bar

this code:

body, html {  width: 100%;  height: 100%;  overflow: hidden;  }    body {  	background-color: gray;  }    #wrapper {  	  	margin: 32px 160px 0 160px;  	background-color: white;  	height: 90%;  	    }    #nav {  	background-color: #48d1cc;  	margin: 0;  	padding: 0;  }    #nav ul li {  	margin: -7px 4px 1px 0;  	background-color: #48d1cc;  	width: 19.5%;  	height: 42px;  	display: inline-block;  	text-decoration: none;  	text-align: center;  	color: black;  }    #nav {  	line-height: 42px;  	font-family: arial, serif;  	font-size: 20px;  }    #nav ul li:hover {  	background-color: #40e0d0;  }    #right {  	margin: 0;  	width: 15%;  	height: 10px;  	color: black;    }
<!doctype html>    <html lang="en">  <head>    <meta charset="utf-8"/>  <meta name="description" content="a test homepage"/>  <meta name="keyword" content="this few test key words"/>  <meta name="robots" content="index,follow"/>  <link rel="stylesheet" href="style.css"/>  <link rel="icon" href="favicon.ico"/>    </head>  <body>    <div id="wrapper">    <div id="nav">  	<ul>  	<a href="index.html"><li>home</li></a>  	<a href="index.html"><li>help</li></a>  	<a href="index.html"><li>contact</li></a>  	<a href="index.html"><li>forum</li></a>  	<a href="index.html"><li>info</li></a>  	</ul>    </div>     <noscript>please enable javascript, have disabled</noscript>  </div>      </body>      </html>

i not sure why happens, great have.

your ul has 16px bottom margin

#nav ul {   margin-bottom: 16px; }

note next time face similar problem try using chrome dev tools (prssing f12) or firebug analyze elements unexpected behaviour


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