main.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@100&display=swap');

body {
    display: flex;
    flex-direction: column;
    font-family: 'Poppins', sans-serif;
    width: 100%;
    margin: 0;
}
h1 {
    text-align: center;
    font-size: 2em;
    padding: 0 auto;
    margin: 0 auto;
}
#game_text {
    font-size: 1em;
    margin: 0 auto;
    padding: 5px 0;
    background-color: lightgray;
    text-align: center;
}
.container {
    display: flex;
    justify-content: center;
    align-items: center;
    align-content: space-between;
    width: 100%;
    padding: 0;
    margin: 0 auto;
    flex-direction: column-reverse;
}
.board {
    display: flex;
    flex-direction: column;
    margin: 5px;
}
.board-text {
    text-align: center;
    margin: 0 auto;
}
.player-board {
    padding: 0;
    margin: 0;
    width: 275px;
}
.gameRow {
    display: flex;
    width: 100%;
    height: 25px;
}
.label {
    display: flex;
    height: 100%;
    width: 100%;
    justify-content: center;
    align-items: center;
    font-size: 1em;
    font-weight: bold;
    text-transform: uppercase;
    border: 1px solid white;
    background-color: lightgray;
}
.square {
    /* display: flex; */
    /* height: 100%; */
    width: 100%;
    font-size: 1em;
    border: 1px solid white;
    background-color: rgb(175, 225, 242);
}
.ctr-btn {
    font-family: 'Poppins', sans-serif;
    font-weight: bold;
    font-size: 1em;
    height: 50px;
    width: 150px;
    border: 1px solid white;
    border-radius: 25px;
    justify-content: center;
    margin: 5px;
}
.ctr-btn:hover {
    background-color: lightblue;
}
span {
    text-transform: uppercase;
}

.hidden {
    display: none;
}

.red {
    background-color: red;
}

.pink {
    background-color: pink;
}

.blue {
    background-color: blue;
}

.orange {
    background-color: orange;
}

.green {
    background-color: green;
}

.yellow {
    background-color: yellow;
}

.lightgray {
    background-color: lightgrey;
}

.gray {
    background-color: grey;
}

.white {
    background-color: white;
}

@media screen and (min-width:400px){
    .player-board {
        width: 385px;
    }
    .gameRow {
        height: 35px;
    }
}

@media screen and (min-width:800px) {
    h1 {
        margin: 10px;
        font-size: 3em;
    }
    #game_text {
        font-size: 1.5rem;
    }
    .container{
        flex-direction: row;
        width: 800px;
    }
    .board{
        margin: 20px auto;
        align-content: space-around;
    }
    .board-text {
        font-size: 1.5em;
    }
}

@media screen and (min-width:940px) {
    .container {
        width: 960px;
    }
    h1 {
        font-size: 4em;
    }
    #game_text {
        font-size: 1.5rem;
    }
    .player-board {
        width: 440px;
    }
    .gameRow {
        height: 40px;
    }
    .ctr-btn {
        font-size: 1.25em;
        height: 50px;
        width: 200px;
    }
}

@media screen and (min-width:1200px) {
    .container {
        width: 1200px;
    }
    .board {
        align-content: center;
    }
    .player-board {
        width: 550px;
    }
    .gameRow {
        height: 50px;
    }
    
}