* {
    margin: 0;
    padding: 0;
    text-decoration: none;
}

body {
    width: 100%;
    background: #333;
    font-family: Helvetica Neue, Arial, Helvetica, sans-serif;
    color: rgb(172, 172, 172);
    margin: 0;
    padding: 0;
}

nav {
    background: rgba(0, 0, 0, 0.616);
    position: fixed;
    width: 100%;
}

a {
    color: white;
}

p {
    margin: 20;
    padding: 20;
}

h1 {
    padding-top: 100px;
    color: rgb(255, 255, 255);
    margin: 0;
    padding: 0;
}
h2 {
    color: rgb(212, 212, 212);
    margin: 0;
    padding: 0;
}
div {
    background: none;
    margin: auto;
}
header {
    background: #111;
}
section {
    padding: 20px;
    display: flex;
    flex-direction: row;
}
footer {
    background: black;
    position: fixed;
    width: 100%;
    display: block;
    bottom: 0;
    left: 0;
}

ul {
    list-style-type: none;
    
}

li {
    display:  inline-block;
    margin:  20px;
}

.topmar {
    margin-top: 400px;
}

.navpf {
    height: 40px;
}

.pf {
    padding-top: 120px;
    width: auto;
    max-width: 400px;
    display: flexbox;
    float: none;
    justify-content: center;
    align-items: center;
}

.topnav-left {
    float: left;
    color: white;
}

.topnav-center {
    float: center;
    color: white;
}

.topnav-right {
    float: right;
    color: white;
}

.center {
    margin: auto;
    width: 50%;
    border: 3px solid green;
    padding: 10px;
}

.tl {
    text-align: left;
}

.tc {
    text-align: center;
}

.tr {
    text-align: right;
}

.abtd {
    margin-top: 10px;
    margin-bottom: 5px;
    text-align: center;
}

.abtb {
    width: 600px;
    border: #111;
    border-width: 50px;
    color: rgb(255, 255, 255);
    background-color: inherit;
    padding: 33px 33px;
    text-align: center;
    text-transform: capitalize;
    text-decoration: none;
    font-size: 16px;
    margin: inherit;
    transition-duration: 0.2s;
    cursor: pointer;
}

.abtb:hover {
    background-color: #222;
    color: #ffffff;
}

.abt {
    display: none;
}

.abti {
    font-size: x-large;
}

.button {
    position: flex;
    border: #111;
    border-width: 50px;
    color: rgb(255, 255, 255);
    background-color: inherit;
    opacity: inherit;
    padding: 33px 33px;
    text-align: center;
    text-transform: capitalize;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: -20px;
    transition-duration: 0.2s;
    cursor: pointer;
}

.button1 {
    background-color: #222;
    color: #ffffff;
    border: 2px solid #222;
}
  
.button:hover {
    background-color: #222;
    color: #ffffff;
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.616);
}
  
::-webkit-scrollbar-thumb {
    background: #888;
}
::-webkit-scrollbar-thumb:hover {
    background: #555;
}