main.css

#container-div {
    display:flex;
    margin: 0 auto;
    align-content: center;
    flex-direction: column;
    text-align: center;
    border-style: solid;
    border-color: black;
}
#choose-div {
    display: grid;
    margin: 0 auto;
    grid-template-rows: 50px 50px 50px;
    grid-gap: 3px;
    margin-bottom: 20px;
}

#game-board {
    display: grid;
    color: black;
    
    grid-template-columns: 50px 50px 50px;
    grid-template-rows: 50px 50px 50px;
    grid-gap: 3px;
    margin: 0 auto;
    border-style: solid;
    border-color: black;
    
}
#outputP {
    font-size: 22px;
    font-family: 'Oswald', sans-serif;
    color: #f0f0f0;
    width: 400px;
    height: 50px;
    margin: 0 auto;
    word-wrap: wrap auto;
}
.chooseX {
    height: 30px !important;
    width: 40px;
    margin: 0 auto;
    border-radius: 100%;
    background-image: linear-gradient(#f0f0f0 45%, #6d1818 55%);
    box-shadow: 0 2px 2px #888888;
    transition: color 0.3s, background-image 0.5s, ease-in-out;

}
.chooseO {
    height: 30px !important;
    width: 40px;
    margin: 0 auto;
    border-radius: 100%;
    background-image: linear-gradient(#f0f0f0 45%, #6d1818 55%);
    font-size: 15px !important;
    transition: color 0.3s, background-image 0.5s, ease-in-out;
}
#resetB {
    height: 30px;
    border-radius: 20px;
    background-image: linear-gradient(#f0f0f0 45%, #6d1818 55%);
    font-size: 15px !important;
    transition: color 0.3s, background-image 0.5s, ease-in-out;
}
#chooseP {
    color: #f0f0f0;
    font-family: 'Oswald', sans-serif;
    font-size: 14px;
    margin: 12px;
}
#copyrightP {
    color: #f0f0f0;
    font-family: 'Oswald', sans-serif;
    font-size: 12px;                    
    margin-top: 20px;    
}
.btn, btn-primary {
    color:black;
    font-size: 15px;
    font-family: 'Oswald', sans-serif;
    height: 50px;
    box-shadow: 0 2px 2px #f0f0f0;
    background-color: #5c8f65;
}
.btn, btn-primary:hover {
    color: black;
}

h1 {
    color: #f0f0f0;
    font-family: 'Anton', sans-serif;
    font-size: 42px;
    margin-bottom: 10px;
}
body {
    background-color: black;
}