#login-form {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-right: -50%;
    transform: translate(-50%, -50%);
    text-align: center;
    background-color: white;
    width: 350px;
    height: 350px;
    border-radius: 10px;
}
body {
    margin: 0;
    background: url("/assets/img/background.jpg");
    background-position: center center;
    background-size: cover;
    background-attachment: fixed;
    background-repeat: no-repeat;
}
#button {
    background-color: #555555; 
    border: none;
    color: white;
    margin-top: 20px;
    padding: 10px 20%;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
}
a {
    text-decoration: none;
    color: purple;
}
#input {
    width: 90%;
    padding: 7px;
    font-size: 15px;
    margin-bottom: 10px;
}
.p-off {
    background-color: tomato;
    border-radius: 2px;
    width: 180px;
    color: white;
}
.p-on {
    background-color: olivedrab;
    border-radius: 2px;
    width: 180px;
    color: white;
}
* {
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
    transition: all 300ms;
  -webkit-transition: all 300ms;
  -moz-transition: all 300ms;
  -o-transition: all 300ms;
}