body {
    background-color: black;
    text-align: center;
    font: 16px Arial;
}
div {
    margin: auto;
    text-align: center;
}
.button {
    background-color: rgb(68, 68, 68);
    border-radius: 4px;
    border: none;
    margin: 4px 2px;
    padding: 16px 32px;
    text-decoration: none;
    text-align: center;
    font-size: 16px;
    color: white;
    display: inline-block;
    transition-duration: 1.25s;
    cursor: pointer;
}
.button:hover {
    background-color: red;
    color: white;
}
.input {
    background-color: rgb(68, 68, 68);
    border-radius: 4px;
    border: none;
    margin: 4px 2px;
    padding: 16px 32px;
    text-decoration: none;
    text-align: center;
    font-size: 16px;
    color: white;
    display: inline-block;
    transition-duration: 1.25s;
    cursor: pointer;
}
.input:hover {
    background-color: red;
    color: white;
}
p {
    color: white;
    font-size: 25px;
    text-align: left;
    padding-left: 20%;
    padding-right: 20%;
    padding-top: 2.5;
    padding-bottom: 0%;
    line-height: normal;
}
h1 {
    color: white;
    font-size: 50px;
    text-align: center;
    padding-left: 20%;
    padding-right: 20%;
    padding-top: 2.5%;
    padding-bottom: 0%;
}
h3 {
    color: white;
    font-size: 30px;
}
code {
    color: white;
}
footer {
    color:white;
    font-size: 25px;
    margin-top: 20%;
    margin-left: 1%;
    float: left;
}
/* Add a black background color to the top navigation */
.topnav {
    background-color: black;
    overflow: hidden;
}

/* Style the links inside the navigation bar */
.topnav a {
    float: left;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 16px;
}

/* Change the color of links on hover */
.topnav a:hover {
    background-color: white;
    color: black;
    transition-duration: 1.25s;
}

/* Add a color to the active/current link */
.topnav a.active {
    background-color: red;
    color: white;
}

/* The dropdown container */
.dropdown {
    float: left;
    overflow: hidden;
}

/* Dropdown button */
.dropdown .dropbtn {
    font-size: 16px;
    border: none;
    outline: none;
    color: white;
    padding: 14px 16px;
    background-color: inherit;
    font-family: inherit;
    /* Important for vertical align on mobile phones */
    margin: 0;
    /* Important for vertical align on mobile phones */
}

/* Add a red background color to navbar links on hover */
.navbar a:hover,
.dropdown:hover .dropbtn {
    background-color: white;
    color: black;
    transition-duration: 1.25s;
}

/* Dropdown content (hidden by default) */
.dropdown-content {
    display: none;
    position: absolute;
    background-color: rgb(75, 75, 75);
    color: white;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
    z-index: 1;
}

/* Links inside the dropdown */
.dropdown-content a {
    float: none;
    color: white;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
}

/* Add a grey background color to dropdown links on hover */
.dropdown-content a:hover {
    background-color: white;
}

/* Show the dropdown menu on hover */
.dropdown:hover .dropdown-content {
    display: block;
}