* {
    padding: 0;
    margin: 0;
}

html {
    background-color: black;
}

body {
    width: 100vw;
    height: 100vh;
    overflow: scroll;
    display: grid;
    place-items: center;
}

body::-webkit-scrollbar {
    display: none;
}

.menu {
    position: sticky;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 350px;
    height: 3rem;
    background-color: #c0009a;
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
    align-items: center;
    border-radius: 5px;
}

#start, #pause, #reset {
    width: 150px;
    height: 2rem;
    display: grid;
    place-items: center;
    border-radius: 25px;
    cursor: pointer;
    color: white;
    background-color: #424242;
}

#start, #pause { top: 45% }
#pause { display: none }
#reset { top: 50% }

#world {
    min-width: 100vw;
    min-height: 100vh;
    display: grid;
    grid-template-columns: repeat(auto-fit
    , 14px);
    place-items: center;
    background-color: #626262;
}

.cell {
    width: 14px;
    height: 14px;
}

.alive { background-color: #ffbb00; }

.dead { background-color: #3a3a3a; }