* {
    padding: 0;
    margin: 0;
    border: 0;
}/*去除默认样式*/

body {
    width: 100%;
    height: 100%;
}/*根据浏览器大小自动适配*/

#container{
    position: relative;
    width: 620px;
    height: 450px;
    margin: 0 auto;
    margin-top: 100px;
    border-radius: 1px;
}
#game {
    position: absolute;
    width: 450px;
    height: 450px;
    display: inline-block;
    background-color: #ffe171;
    box-shadow: 0 0 10px #ffe171;
    border-radius: 5px;
}
#game div{
    position: absolute;/*绝对定位*/
    width: 149px;
    height: 149px;
    box-shadow: 1px 1px 2px #777;
    background-color: #20a6fa;
    color: white;/*字体颜色*/
    text-align: center;
    font-size: 150px;
    line-height: 150px;
    cursor: pointer;
    transition: 0.3s;
}

#game div:hover{
    color: #ffe171;
}

#d1{
    left: 0px;
}

#d2{
    left: 150px;
}

#d3{
    left: 300px;
}

#d4 {
    left: 0px;
    top: 150px;
}

#d5 {
    left: 150px;
    top: 150px;
}

#d6 {
    left: 300px;
    top: 150px;
}

#d7 {
    left: 0px;
    top: 300px;
}

#d8 {
    left: 150px;
    top: 300px;
}


#control{
    width: 150px;
    height: 450px;
    display: inline-block;
    float: right;
}

#control rowspan{
    height: 25px;
    font-size: 20px;
    color: #222;
    margin-top: 10px;
}

#start, #reset {
    display: inline-block;
    font-size: 28px;
    width: 100px;
    height: 28px;
    background-color: #20a6fa;
    color: #ffe171;
    text-align: center;
    border-radius: 5px;
    text-shadow: 1px 1px 2px #ffe171;
    box-shadow: 2px 2px 5px #4c98f5;
    cursor: pointer;
}