body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.container {
    width: 90%;
    margin: 50px;
    overflow: hidden;
}

header {
    background: #333;
    color: #fff;
    padding-top: 30px;
    min-height: 70px;
    border-bottom: #0073e6 3px solid;
}

header a {
    color: #fff;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 14px;
}

header a:hover {
    color: #0073e6;
}

header ul {
    padding: 0;
    list-style: none;
}

header li {
    float: left;
    display: inline;
    padding: 0 20px 0 20px;
}

header h1 {
    float: left;
}

header nav {
    float: right;
    margin-top: 10px;
}
.lewy {
	text-align: left;
	margin-right: 20px;
}
.prawy {
	text-align: right;
	margin-right: 20px;
}
.main-section {
    padding: 20px 0;
    border-bottom: #0073e6 1px solid;
}

.main-section h2 {
    color: #0073e6;
}

footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    margin-top: 20px;
}
input[type="password"] {
			text-align: left;
            padding: 10px 20px;
            font-size: 12px;
            border-radius: 5px;
            border: 1px solid #ccc;
        }
        button {
            padding: 10px 20px;
            font-size: 12px;
            cursor: pointer;
            background-color: #4CAF50;
            color: white;
            border: black solid;
            border-radius: 5px;
        }
        button:hover {
            background-color: #45a049;
        }