html, body, div, span,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend {
background: transparent;
border: 0;
margin: 0;
padding: 0;
vertical-align: baseline;
font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;
}
body.login { background: url(bg.jpg); }
h2 { font-size: 30px; line-height:38px; font-weight:normal; }
.loginbox { background: #FBFCFD; padding: 10px; width: 490px; margin: 4% auto 0 auto; position: relative; }
.loginboxinner {
background: #FBFCFD; padding: 5px; position: relative; border: 1px solid #FBFCFD;
-moz-box-shadow: inset 0 1px 0 #FBFCFD; -webkit-box-shadow: inset 0 1px 0 #FBFCFD; box-shadow: inset 0 1px 0 #FBFCFD;
}
.loginheader { height: 20px; }
.loginform { margin: 4px auto; text-align:center; }
.loginbox h1 { font-size: 30px; letter-spacing: 1px; color: #555; font-weight: normal; padding-top: 10px; }
.loginbox p { margin: 7px 0 5px 0; }
.loginbox label { display: block; color: #666; letter-spacing: 1px; font-size: 18px; }
.loginbox input.mini { width:195px; }
.loginbox input {
padding: 12px 10px; color: #ccc;
font-family: Arial, Helvetica, sans-serif; margin-top: 8px; font-size: 15px; border: 1px solid #ccc; width: 420px; outline: none;
}
.loginbox button {
background: #5870A8; background-image:-webkit-linear-gradient(top, #637BAD, #4F67A4); padding: 10px 20px; font-size: 18px; border: 1px solid #1D3871; letter-spacing: 1px; color: #fff; width: 440px; line-height:30px; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
-moz-box-shadow: 1px 1px 3px #1D3871; -webkit-box-shadow: 1px 1px 3px #1D3871; box-shadow: 1px 1px 3px #1D3871; cursor: pointer;
}
.radius { -moz-border-radius: 5px; -webkit-border-radius: 5px; border-radius: 5px; }
.radius1 { -moz-border-radius: 3px; -webkit-border-radius: 3px; border-radius: 3px; }
.title { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; color:#8E989E; line-height:28px; font-weight:normal; text-align:center; font-size:16px; }
@media screen and (max-width: 430px) {
body { font-size: 11px; }
button, input, select, textarea { font-size: 11px; }
.loginbox { width: auto; margin: 10px; }
.loginbox input { width: 95%; }
.loginbox button { width: 100%; }
}
#facebook-Bar {
background:#45619D;
border-bottom: 1px solid #0053A6;
box-shadow: 0 0 2px rgba(0, 0, 0, 0.52);
min-width: 1000px;
width: 100%;
z-index: 1000;
}
#facebook-Frame {
margin-left:auto;
margin-right:auto;
max-width:1000px;
height:70px;
display:block;
}
/*-------LOGO-----------*/
#logo {
float: left;
height: 70px;
position: relative;
width: 160px;
}
#logo a {
position: absolute;
top: 20px;
font-size:23px; font-weight:bold; color:#FFF;
text-decoration:none;
font-family:"Lucida Sans Unicode", "Lucida Grande", sans-serif;
}
/*-------Login-----------*/
#header-main-right {
float: right;
height: 68px;
position: relative;
top:5px;
}
#header-main-right-nav {
padding: 4px 6px 4px 4px;
position: absolute;
right: 0;
}
#login_form .inputtext {
background-color: #FFFFFF;
height:16px;
font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
font-size: 13px;
margin: 0;
padding: 5px 8px 5px 8px;
width: 166px;
border:1px solid #3A518A;
}
#login_form .inputtext:hover {
border-color: #A0A0A0 #B9B9B9 #B9B9B9;
border-image: none;
border-style: solid;
border-width: 1px;
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1) inset;
}
#login_form table tr td {
padding: 0 0 0 5px;
}
#login_form table tr td label {
color: #fff;
cursor: pointer;
font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
font-size: 12px;
font-weight: normal;
padding-left: 1px;
text-align: left;
vertical-align: middle;
}
.fbbutton { border:1px solid #1D3871; width:94px; background-image:-webkit-linear-gradient(top, #637BAD, #4F67A4); font-size:14px; line-height:25px; font-weight:normal; color:#fff; }

Pasted from <https://w3lessons.info/facebook-style-homepage-design-with-registration-form-login-form-using-css3/>