body {
    background: #ccc;
    user-select: none;
    cursor: default;
    display: flex;
    position: fixed;
    width: 100%;
    height: 100%;
    justify-content: space-evenly;
    align-items: center;
    flex-direction: row;
}

#emoji{
    font-size: 32px;
    cursor: pointer;
}

.active{
    background: orange;
}

.buttons-left {
    float: left;

}

.buttons-right {
    float: right;
}

button {
    display: block;
    width: 120px;
    height: 30px;
    border-radius: 7px;
    border: none;
    background: #34D;
    color: white;
    font-size: 19px;
    box-shadow: 2px 2px 1px #888;
    margin: 10px auto;
}

button:hover {
    background: orange;
    box-shadow: 2px 2px 3px #777;
}

.container {
    display: inline-block;
    background: #ddd;
    border: 3px solid #eee;
    border-radius: 2%;
    box-shadow: 4px 4px 8px #888;
}

header {
    font-size: 25px;
    font-weight: bold;
    text-align: center;
    padding: 24px 24px 0 24px;
}

.header-contain-nums {
    border: 1px solid #777;
    width: 130px;

}

#id-div-time {
    float: left;
}

#id-div-mines {
    float: right;
}

#id-content {
    margin: 30px 30px;
}

.square-line {
    overflow: auto;
    margin: 0 auto;
}

.square {
    width: 23px;
    height: 23px;
    border: 1px solid #666;
    float: left;
    text-align: center;
    background: #abe;
}

.square:hover {
    background: #cdf;
}

.mine {
    background: #f88;
}

.mine:hover {
    background: #f55;
}

.value {
    visibility: hidden;
}

.show {
    visibility: visible;
}

.clicked {
    background: #eee;
}

.clicked:hover {
    background: #eee;
}