body {
    margin: 0;
    padding: 0;
    background: #0f2027;
    font-family: sans-serif;
}

.login-box {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300px;
    padding: 40px;
    transform: translate(-50%, -50%);
    background: #1c1c1c;
    box-shadow: 0 15px 25px rgba(0,0,0,.6);
    color: #fff;
}

.login-box h2 {
    margin: 0 0 30px;
    padding: 0;
    text-align: center;
}

.login-box .user-box {
    position: relative;
}

.login-box .user-box input {
    width: 100%;
    padding: 10px 0;
    background: none;
    border: none;
    border-bottom: 1px solid #fff;
    color: #fff;
    margin-bottom: 30px;
}

.login-box .user-box label {
    position: absolute;
    top: 10px;
    left: 0;
    color: #aaa;
    pointer-events: none;
    transition: 0.5s;
}

.login-box button {
    background: #03e9f4;
    border: none;
    color: white;
    padding: 10px;
    width: 100%;
    cursor: pointer;
    font-weight: bold;
}
