.para {background: #CD853F; border-radius: 10px; box-shadow: 0 0 10px #000;font-size: 18pt; color: #ffffff;font-weight:bold;}
img {border: 1px solid orange; border-radius: 10px; box-shadow: 0 0 2px #CD853F;}
#introduce {width:1200px;height:200px;background-color:#CD853F;border-radius:20px  40%  40% 20px;box-shadow:10px 0px 10px #000000;}
#navCategory {position: fixed;top: 300px;left: 10px;width: 180px;font-family: 'Microsoft Yahei';font-size: 1:60px;background-color:#CD853F;;border-radius:10px  20px  20px 10px;box-shadow:10px 0px 10px #000000;}