styles.css

@font-face {
    font-family:'flappy-bird';
    src: url('assets/fonts/flappy-bird.ttf');
}

* {
    color: white;
    font-family: 'flappy-bird';
    font-weight: 400;
}

.screen {
    background-image: url('assets/images/background.png');
    background-size: contain;
    background-repeat: repeat-x;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 640px;
    height: 360px;
}

.screen h1 {
    display: inline-block;
    font-size: 80px;
    text-align: center;
    text-shadow: 1px 1px 2px rgb(128, 128, 128, 128);
    margin: 40px;
}

.screen ul {
    list-style-type: none;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    flex-grow: 1;
    padding: 0px;
}

.screen li {
    background-color: #f73d72;
    cursor: pointer;
    font-size: 40px;
    text-align: center;
    border-radius: 12px;
    padding: 8px;
    width: 100px;
    box-shadow: 2px 2px 4px 0px rgb(128, 128, 128, 128);
}

.screen li:hover {
    background-color: #b42d54;
}

.screen li:active {
    background-color: #f73d72;
}