ricochet/ricochet.css

*  {
    box-sizing: border-box;
    font-family: Montserrat;
}

.controls-container {
    background: #e7e7e7;
    bottom: 0;
    left: 0;
    position: absolute;
    top: 0;
    width: 300px;
}

.controls-subtitle {
    background-color: #555;
    color: #fff;
}

.controls-title {
    background-color: #222;
    background-image: url('sprite-robots.png');
    color: #fff;
    font-size: 12px;
    line-height: 48px;
    text-align: center;
}

.controls-room {
    line-height: 48px;
    text-align: center;
}

.controls-room span {

}

.controls-room input {

}

.controls-room button {

}

#controls-guesses  {
    background: salmon;
}

.controls-guess  {
    background: yellow;
    float: left;
    font-size: 12px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    width: 30px;
}

.controls-guess:hover {
    background: orange;
}

.board-container {
    background: conic-gradient(lime 0 25%, yellow 25% 50%, red 50% 75%, blue 75% 100%);
    bottom: 0;
    left: 300px;
    position: absolute;
    right: 0;
    top: 0;
}

#board-squares {
    border-color: #aaa;
    border-style: solid;
    border-width: 1px 0 0 1px;
    position: relative;
}

.board-square{
    background: #ddd;
    border-style: solid;
    border-color: #aaa;
    border-width: 0 1px 1px 0;
    float: left;
    height: 40px;
    width: 40px;
}

.board-wall-x {
    background: #222;
    height: 8px;
    margin-top: -4px;
    position: absolute;
    width: 40px;
}

.board-wall-y {
    background: #222;
    height: 40px;
    margin-left: -4px;
    position: absolute;
    width: 8px;
}

.board-robot {
    /*border-radius: 20px;*/
    border: 2px solid transparent;
    height: 36px;
    margin: 2px;
    position: absolute;
    width: 36px;
}

.board-robot-shadow {
    background: red;
    height: 36px;
    opacity: 0.75;
    position: absolute;
    width: 36px;
}