.flex-container {
    text-align: center;
    display: block;
  }


.center {
    display: block;
    margin-left: auto;
    margin-right: auto;

}

.center input {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.center img {
    display: block;
    margin-left: auto;
    margin-right: auto;
}



.topnav {
    overflow: hidden;
  }

.topnav a {
    float: right;
    font-family: Arial, Helvetica, sans-serif;
    float: right;
    display: block;
    color: black;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 14px;
}

.topnav img {
    float: right;
}


.footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: gray;
    color: white;
    text-align: right;
    font-family: Arial, Helvetica, sans-serif;
}

.footer p {

}

.left {
    text-align: left;
}