style.css

* {
    margin: 0;
}
html {
    background: #181a1b;
    height: 100vh;
}
body {
    font-family: cursive;
    text-align: center;
    display: flex;
    height: 100%;
    justify-content: space-around;
    align-items: center;
}
#score-board {
    border: 2px dashed #e49400;
    border-radius: 10px;
    color: #d8d4cf;
    display: grid;
    grid-template-columns: 50% 50%;
    grid-template-rows: 50% 50%;
    align-items: center;
    padding: 1%;
    position: relative;
}
#score-reset {
    position: absolute;
    bottom: 0;
    right: 0;
    border-radius: 9px 0 9px 0;
}
#container {
    display: grid;
    grid-template-columns: 33% 33% 33%;
    grid-template-rows: 33% 33% 33%;
    position: relative;
}
#container div img {
    height: 100%;
    width: 100%;
}
button {
    background: #e49400;
    color: #000;
    outline: none;
    border: none;
}
button:active {
    background: #ff4500;
}
@media screen and (orientation:portrait) {
    body {
        flex-direction: column;
    }
    #score-board {
        width: 30vw;
    }
    #container {
        width: 96vw;
        height: 96vw;
    }
}
@media screen and (orientation:landscape) {
    body {
        flex-direction: row;
    }
    #score-board {
        width: 20vh;
    }
    #container {
        width: 85vh;
        height: 85vh;
    }
}
.bb {
    border-bottom: 4px solid #e49400;
    margin: -1px;
}
.bl {
    border-left: 4px solid #e49400;
    margin: -1px;
}
.br {
    border-right: 4px solid #e49400;
    margin: -1px;
}
.bt {
    border-top: 4px solid #e49400;
    margin: -1px;
}
#winLine {
    display: none;
    width: 13px;
    border-radius: 100%;
    background: #a30000;
    position: absolute;
    top: 49.52%;
    left: 49.52%;
}
#winDow {
    display: none;
    position: absolute;
    background: #292c2e;
    color: #d8d4cf;
    top: 50vh;
    left: 50vw;
    opacity: 0;
    border-radius: 10px;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
    width: 300px;
    height: 150px;
    transform: translate(-50%, -50%);
    transition: opacity .5s;
}
#winDow h1 {
    padding: 5px;
}
#winDow button {
    border-radius: 5px;
    padding: 3px 6px;
}