body {
    font-family: 'Heebo', Helvetica, Arial, sans-serif;
    font-size: 16px;
    position: relative;
    margin: 0 auto;
    background-color: #eee;
    background-size: 1em 1em;
    height: 100vh;
}
.canvas-wrapper {
    margin: 5rem auto;
    display: block;
    width: 900px;
    height: 634px;
    border: 6px solid #CECECE;
    box-shadow: 2px 2px 0 2px rgba(0, 0, 0, 0.5);
    outline: 1px solid #888;
}
canvas {
    background: #f9f9f9;
    border-top-width: 0;
    cursor: pointer;
    border: 1px solid #444;
    box-shadow: 1px 1px 0 #eee, -1px -1px 0 #888;
}
.canvas__header {
    background: #CECECE;
    color: #222;
    width: 900px;
    display: flex;
    height: 30px;
    position: relative;
    font-size: 14px;
}    .canvas__header:before {
    content: "";
    display: block;
    width: 910px;
    border-top: 1px solid #eee;
    height: 1px;
    position: absolute;
    top: -5px;
    left: -5px;
}
.canvas__header h4 {
    display: inline-block;
    text-align: left;
    margin-top: 0;
}
.canvas__header p.score {
    margin: 0;
    display: inline-block;
        font-weight: bold;
}
.canvas__header p.score:first-child {
    margin-right: 15px;
}
.canvas__header .score > span {
    font-weight: normal;
}

.col {
    width: 33%;
    text-align: center;
    margin-top: 4px;
}
.col:first-child {
    text-align: left;
}
.canvas__header button {
    background: #cecece;
    border: 1px solid #555;
    box-shadow: 1px 1px 0 #eee, -1px -1px 0 #888;
    padding: 4px;
    transition: background 100ms;
    font-size: 13px;
    margin-top: -6px;
    text-transform: uppercase;
}
.col:last-child {
    text-align: right;
}
.canvas__header button:hover {
    cursor: pointer;
    background: #ddd;
}
.attr {
text-align: center;
}