html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
    display: block;
}
body {
    line-height: 1;
}
ol, ul {
    list-style: none;
}
blockquote, q {
    quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}

ul{
    display:flex;
    justify-content: space-between;

}

li{
    width:200px;
    text-align: center;
    margin:10px;
}
li:hover{
    cursor:pointer;
    background-color:rgb(78, 73, 73);
}

a{
    display:block;
    padding:5px 0;
}
a:link, a:visited{
    color:rgb(0, 0, 0);
    text-decoration: none;
}
header{
    width:100%;
    text-align: center;
    font-size:55px;
    margin:auto;
    background-image: url(twitter-twitter-for-android.png);
    background-size: 55px 55px;
    background-repeat: no-repeat;
    background-position:left center;
    font-family: 'Kalam', cursive;
}     

body {
    background-image: url(rays-sun-make-their-way-through-clouds-snowy-high-mountain-range_8353-5749.avif);
    background-size: cover;
}