 <p>the checkbox isen't centerd it has just a width of 200px because you set the width of all input elements to 200px.</p> <p>so thats why you should specify your input which you wana be 200px width: <code>input[type="text"]</code></p> <p>Example: <a href="http://jsfiddle.net/sY9Fa/1/" rel="nofollow">http://jsfiddle.net/sY9Fa/1/</a></p>