h1, h2, h3, h4, h5, h6 {
    color: #ffffff;
}
a, a:hover, a:focus, a:active {
    text-decoration: none;
    outline: none;
}
ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

header {
    position: relative;
    width: 100%;
    background: rgb(0, 0, 0);
    z-index: 99;
}