dark.css

html, body {
    height: auto;
}

html {
    display: table;
    margin: auto;
}

body {
    background-color: #000000;
    font: 12px Consolas, Courier;
    color: #FFFFFF;
    padding: 35px;
    display: table-cell;
    text-align: center;
    vertical-align: middle;
}
 
form, p, span {
    margin: 0;
    padding: 0;
}
 
input {
    font: 12px Consolas, Courier;
}
 
a {
    color: #FF0000;
    text-decoration: none;
}
 
a:hover {
	cursor: pointer;
	text-decoration: underline;
}
 
#wrapper,#loginform {
    margin: 0 auto;
	margin-top: 3vh;
	margin-bottom: 3vh;
    padding-bottom: 25px;
    text-align: center;
    background: #202020;
    width: 50vw;
    border: 1px solid #474747;
}
 
#loginform {
    padding-top: 18px;
}
 
#loginform p {
    margin: 5px;
}

#chatbox {
    text-align: left;
    margin: 0 auto;
    margin-bottom: 25px;
    padding: 10px;
    background: #202020;
    height: 70vh;
    width: 45vw;
    border: 1px solid #474747;
    overflow: auto;
}
 
#usermsg {
    width: 40vw;
    border: 1px solid #FFFFFF;
}
 
#submit {
    width: 60px;
}
 
.error {
    color: #ff0000;
}
 
#menu {
    padding: 12.5px 25px 12.5px 25px;
}
 
.welcome {
    float: left;
}
 
.logout {
    float: right;
}
 
.msgln {
    margin: 0 0 2px 0;
}

user {
    color: #00FF00;
    font: 15px Consolas, Courier;
    font-weight: bold;
    letter-spacing: -1px;
}

alert {
    text-align: center;
}

img {
    text-align: left;
    vertical-align: top;
    margin-bottom: 10px;
    max-width: 20vw;
}