#header-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background-color: darkblue;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}
form{
margin-top: 80px;
    text-align: center;
}

a {
    text-decoration: none;
    outline: none;
    color: white;
}

#img1 {
    width: 400px;
    height: 250px;
    float: right;
    margin-top: 50px;
    margin-right: 160px;
}

#img2 {
   width: 400px;
    height: 250px;
    float: left;
    margin-top: 50px;
    margin-left: 160px;
}

#img3 {
    width: 400px;
    height: 250px;
    display: block;
    margin: 20px auto 0;
    max-width: 300px;
}


body {
    background-color: darkcyan;
}

form {
    max-width: 600px;
    width: 90%;
    min-width: 300px;
    height: auto;
    padding: 20px;
    background-color: dimgray;
    border-radius: 10px;
    margin: 100px auto 0 auto;
    display: block;
}