* {
    box-sizing: border-box;
}
img {
    float: left;
    padding-left: 0%;       
 }
.nadpis {
    background-color: #333;
    color: #fdfdfd;
    padding: 10px 20px;
  
    text-shadow: 2px 2px 4px #000000;
}
span {
    color: rgb(69, 145, 221);
}
nav ul {
    list-style-type: none;
    padding: 0;
    display: table;
    background-color: #333;
    width: 100%;
    overflow: hidden;
}
nav ul li {
    display: inline;
    margin-right: 10px;
    margin-top: 5px;
}
nav ul li a {
    color: #fff;
    text-decoration: none;
    padding: 10px 10px;
}
nav ul li a:hover {
    color: black;
    background: #f0f0f0;
}
body {
    font-family: Arial, sans-serif;
    margin: 10 20px;
    padding: 0;
}
form {
    width: 60%;
    margin-top: 20px;
    position: relative;
}
input[type="text"], input[type="email"], textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    margin-top: 6px;
    margin-bottom: 16px;
    resize: vertical;
}
input[type="submit"], input[type="reset"] {
    background-color: #4CAF50;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
input[type="submit"]:hover, input[type="reset"]:hover {
    background-color: #45a049;
}
.footer {
    background-color: #333;
    color: #fff;
    padding: 10px 20px;
    clip-path: polygon(0 20%, 100% 0, 100% 75%, 0 80%);
}