unknown.css

@import url(https://fonts.googleapis.com/css?family=Nunito);

body {
    background-image: url("assets/Wallpaper8.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    font-family: "Nunito", sans-serif;
    font-size: 24px;
    line-height: normal;
    font-weight: bolder;
    padding: 5px;
    text-align: center;

    color: #ffffff;
}

#game {
    width: 500px;
    height: 500px;
    margin: auto;
    display: flex;
    flex-wrap: wrap;

    background-color: #b5c6cd;
    border: 6px solid #ffffff;
    border-radius: 0.5em;
}

h2 {
    font-size: 1.5em;
    font-weight: bold;
    line-height: 80%;
}

h3 {
    font-size: 3em;
    font-weight: bolder;
    text-align: center;
    line-height: 0em;
}

.cover-screen {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    background-image: url("assets/yelan.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-color: #000000;
    color: #000000;
}

.secret {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    margin-top: 1em;
}

.secret a {
    color: #ffffff;
}

#replayButton {
    font-family: "Nunito", sans-serif;
    padding: 1em 2em;
    border: none;
    border-radius: 0.5em;
    font-size: 1em;
    letter-spacing: 0.2px;
    color: #ffffff;

    background-color: #4a08ce;
}

#replayButton:hover {
    cursor: pointer;
}

.hide {
    display: none;
}

.bottom {
    font-size: 1em;
    font-weight: normal;
    transform: scale(0.8);

    text-align: center;
    align-items: center;
    justify-content: center;
}

.container {
    margin-bottom: -30px;
    padding: 1em;
}

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown button {
    padding: 0.7em 1.5em;
    font-size: 0.7em;
    border-radius: 0.6em;
    letter-spacing: 0.2px;
    cursor: pointer;

    background-color: #ebebeb;
    color: #000000;
}

.dropdown-content {
    display: none;
    position: absolute;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
    z-index: 1;

    background-color: rgba(238, 177, 197, 0.95);
    border-radius: 0.6em;
}

.dropdown-content a {
    padding: 0.7em 1.5em;
    text-decoration: none;
    display: block;

    color: #000000;
    font-size: 0.7em;
}

.dropdown-content a:hover {
    background-color: #f1f1f1;
    cursor: pointer;
    border-radius: 0.6em;
}

.dropdown:hover .dropdown-content {
    display: block;
    bottom: 100%;
}

.tile {
    width: 115px;
    height: 115px;
    border: 5px solid #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 45px;
    font-weight: bold;
}

/*colours for each tile*/

.t2 {
    background-color: #4cc9f0;
    color: #000000;
}

.t4 {
    background-color: #05b2dc;
    color: #000000;
}

.t8 {
    background-color: #4895ef;
    color: #000000;
}

.t16 {
    background-color: #4361ee;
    color: #000000;
}

.t32 {
    background-color: #3f37c9;
    color: #ffffff;
}

.t64 {
    background-color: #3a0ca3;
    color: #ffffff;
}

.t128 {
    background-color: #480ca8;
    color: #ffffff;
}

.t256 {
    background-color: #560bad;
    color: #ffffff;
}

.t512 {
    background-color: #7209b7;
    color: #ffffff;
}

.t1024 {
    background-color: #b5179e;
    color: #ffffff;
}

.t2048 {
    background-color: #f72585;
    color: #000000;
}

.t4096 {
    background-color: #f26a8d;
    color: #000000;
}

.t8192 {
    background-color: #f49cbb;
    color: #000000;
}