Login Page

HTML

<form id="login">
    <h1>Log In</h1>
    <fieldset id="inputs">
        <input id="username" type="text" placeholder="Username" autofocus required>   
        <input id="password" type="password" placeholder="Password" required>
    </fieldset>
    <fieldset id="actions">
        <input type="submit" id="submit" value="Log in">
        <a href="">Forgot your password?</a><a href="">Register</a>
    </fieldset>
</form>

CSS

#login
{
    background-color: #fff;
    background-image: -webkit-gradient(linear, left top, left bottom, from(#fff), to(#eee));
    background-image: -webkit-linear-gradient(top, #fff, #eee);
    background-image: -moz-linear-gradient(top, #fff, #eee);
    background-image: -ms-linear-gradient(top, #fff, #eee);
    background-image: -o-linear-gradient(top, #fff, #eee);
    background-image: linear-gradient(top, #fff, #eee);  
    height: 240px;
    width: 400px;
    margin: -150px 0 0 -230px;
    padding: 30px;
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 0;
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
    border-radius: 3px;  
    -webkit-box-shadow:
          0 0 2px rgba(0, 0, 0, 0.2),
          0 1px 1px rgba(0, 0, 0, .2),
          0 3px 0 #fff,
          0 4px 0 rgba(0, 0, 0, .2),
          0 6px 0 #fff,  
          0 7px 0 rgba(0, 0, 0, .2);
    -moz-box-shadow:
          0 0 2px rgba(0, 0, 0, 0.2),  
          1px 1px   0 rgba(0,   0,   0,   .1),
          3px 3px   0 rgba(255, 255, 255, 1),
          4px 4px   0 rgba(0,   0,   0,   .1),
          6px 6px   0 rgba(255, 255, 255, 1),  
          7px 7px   0 rgba(0,   0,   0,   .1);
    box-shadow:
          0 0 2px rgba(0, 0, 0, 0.2),  
          0 1px 1px rgba(0, 0, 0, .2),
          0 3px 0 #fff,
          0 4px 0 rgba(0, 0, 0, .2),
          0 6px 0 #fff,  
          0 7px 0 rgba(0, 0, 0, .2);
}

#login:before
{
    content: '';
    position: absolute;
    z-index: -1;
    border: 1px dashed #ccc;
    top: 5px;
    bottom: 5px;
    left: 5px;
    right: 5px;
    -moz-box-shadow: 0 0 0 1px #fff;
    -webkit-box-shadow: 0 0 0 1px #fff;
    box-shadow: 0 0 0 1px #fff;
}

/*--------------------*/

h1
{
    text-shadow: 0 1px 0 rgba(255, 255, 255, .7), 0px 2px 0 rgba(0, 0, 0, .5);
    text-transform: uppercase;
    text-align: center;
    color: #666;
    margin: 0 0 30px 0;
    letter-spacing: 4px;
    font: normal 26px/1 Verdana, Helvetica;
    position:...