body {
    font-family     : Arial, Helvetica , sans-serif;
    font-size       : 15pt;
    margin-left     : 2em;
    margin-right    : 2em;
    background      : linear-gradient(to right, black, darkblue, blue);
}

h1 {
    color : white;
}

h3 {
    color : white;
}

label {
    float         : left;
    width         : 6em;
    margin-bottom : 0.5em;
}

input[type = "text"], input[type = "email"], input[type = "number"] {
    width         : 15em;
    height        :  2em;
    margin-left   : 0.5em;
    margin-bottom : 0.5em;
}

input[type = "password"] {
    width         : 10em;
    height        :  2em;
    margin-left   :  0.5em;
    margin-bottom :  0.5em;
}

br {
    clear : both;
}

button[type = "submit"] {
    display: block;
    background-color: #990033;
/*    background-color: #009900; */
    border-radius: 12px;
    color: white;
    width: 150px;
    padding: 5px 10px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 12px;
    -webkit-transition-duration: 0.4s; /* Safari */
    transition-duration: 0.4s;
}

button {
    background-color: #009900; 
    color: white; 
    border: 2px solid white;
}

button:hover {
    background-color: #000000;
    color: white;
}

#uno {
    width         : 15em;
    margin-left   : 0.5em;
    margin-bottom : 0.5em;
}

#submit {
    margin-left : 0.5em;
}