body {
    overflow: hidden;
    user-select: none;
}
.logo {
    margin-top: 75px;
    text-align: center;
}
.container {
    margin: 25px auto 75px;
    width: 512px;
}
.playground {
    padding: 24px 0;
    background-color: #aea0cb;
}
.score {
    height: 30px;
    display: flex;
}
.scoreLeft, .scoreRight {
    width: 256px;
    color: #fff;
    font-size: 24px;
    line-height: 30px;
}
.scoreLeft {
    text-align: right;
    padding-right: 10px;
    background-color: #2396d9;;
}
.scoreRight {
    text-align: left;
    padding-left: 10px;
    background-color: #ef2f2e;
}
.header {
    height: 30px;
    line-height: 24px;
    padding-right: 6px;
    background-color: #48327e;
    text-align: right;
    font-size: 24px;
    font-weight: bold;
    color: #fff;
}
canvas {
    display: block;
}
.back {
    width: 100px;
    height: 50px;
    margin: 0 auto;
}