.baner{

background: #812F8D;
color:white;
font-size: 200%;
text-align: center;
padding: 10px;
}

.panel_lewy{

background: #BB74C4;
color: white;
width:25%;
float:left;
height: 100vh;
}

.panel_prawy{
width: 75%;
float:left;
}
h2{
text-align:center;
}

form{
margin: 20px;
}