body{
    background:#121312;
    font-family: sans-serif;
}
#kotak{
    width: 520px;
    height: 250px;
    background: #f9f9f9;
    margin: 150px auto 100px auto;
    color:#080808;
}

#atas{
    height: 35px;
    width: 520px;
    text-align: center;
    font-size: 15pt;
    padding-top:1px;
}
#bawah{
    height: 200px;
    width: 520px;
    
}
.masuk{
    width: 400px;
    height:40px;
    margin-top:10px;
    margin-left: 60px;
    font-size: 12pt;
    border: 1px solid #2ECC71;
    padding-left:10px;
    color:#2ECC71;
}
.masuk:focus{
    width: 400px;
    height:40px;
    margin-top:10px;
    margin-left: 60px;
    font-size: 12pt;
    padding-left:10px;
    color:#1ABC9C;
    outline: none;
    box-shadow: 0 0 5px #2ECC71;
}
 
#tombol{
    width: 400px;
    height:40px;
    margin-top:10px;
    margin-left: 60px;
    background: #121312;
    border:none;
    color:#fff;
    font-size: 14pt;
    outline:none;
}