/*背景渐变颜色*/
body{background:linear-gradient(to right, #bb313e25, #bb313e25, #d7222925, #dd4a1625, #e4761525, #f5c50025, #f0e92725, #b1ce2425, #48a93525, #03944525, #157c4f25, #176a5825, #1b556325, #1d386f25, #1d386f25, #20277825, #52266325, #8a244b25);}