input[type=text] {
    width:100%;
    max-width: 400px;
    box-sizing: border-box;
    border: 2px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
    background-color: white;
    background-image: url('https://zkm.d42c-networks.eu/img/user.png');
    background-position: 10px 10px; 
    background-repeat: no-repeat;
    padding: 12px 20px 12px 40px;
}

input[type=password] {
    width:100%;
    max-width: 400px;
    box-sizing: border-box;
    border: 2px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
    background-color: white;
    background-image: url('https://zkm.d42c-networks.eu/img/pass.png');
    background-position: 10px 10px; 
    background-repeat: no-repeat;
    padding: 12px 20px 12px 40px;
}

input[type=submit] {
    width:100%;
    max-width: 395px;
    background-color: #1E5C97;
    border: none;
    color: #ffffff;
    padding: 16px 32px;
    text-decoration: none;
    margin: 4px 2px;
    cursor: pointer;
}