* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: arial, sans-serif;
    /* font-size: 12px; */
    /* font-weight: 500; */
    text-align: center;
}
body {
    background-color: #ededed;
}
h1 {
    font-size: 20px;
    padding: 10px 20px;
}
h2 {
    font-size: 22px;
    padding: 10px 20px;
}

table {
    display: inline-block;
    /* border: 5px solid red; */
    margin: 0;
    padding: 0;
    width: 206px;
    height: 206px;
}
tbody {
    width: 100%;
    height: 100%;
}
tr {
    display: table-row;
    margin: 0;
    padding: 0;
}
td {
    display: table-cell;
    margin: 0;
    padding: 0;
}


.app {
    padding: 0px;
    display: block;
    background-color: lightgray;
}
.game-field {
    margin: 20px;
    background-color: gray;
    display: inline-block;
}

.game-cell {
    width: 32px;
    height: 32px;
    padding: 0px;
    margin: 0px;
    border: 0px solid #000;
    /* background-color: #fff; */
}

.game-cell {
    background: url('../sprite/mytiles-zero.png');
    background-repeat: no-repeat;
    cursor: pointer;
}


.empty-0 {
    background-position: -0px 0px;
}
.empty-1 {
    background-position: -32px 0px;
}
.empty-2 {
    background-position: -64px 0px;
}
.empty-3 {
    background-position: -96px 0px;
}
.empty-4 {
    background-position: -128px 0px;
}
.empty-5 {
    background-position: -160px 0px;
}
.empty-6 {
    background-position: -192px 0px;
}
.empty-7 {
    background-position: -224px 0px;
}
.empty-8 {
    background-position: -256px 0px;
}

.flag {
    background-position: -288px 0px;
}
.not-bomb, .empty-10 {
    background-position: -320px 0px;
}
.boom, .empty-11 {
    background-position: -352px 0px;
}
.bomb, .empty-12 {
    background-position: -384px 0px;
}
.question, .empty-13 {
    background-position: -416px 0px;
}
.empty-0.open,
.empty-14 {
    background-position: -448px 0px;
}
.empty-15 {
    background-position: -480px 0px;
}
.empty-16 {
    background-position: -512px 0px;
}



.empty-1:hover,
.empty-2:hover,
.empty-3:hover,
.empty-4:hover,
.empty-5:hover,
.empty-6:hover,
.empty-7:hover,
.empty-8:hover,
.empty-0:hover,
.empty-blue {
    background-position: -129px -33px; /* hover blue */
}