代码片段：body{overflow:hidden;}/*~~~~~~~INIT.BTN~~~~~~~*/.btn{position:relative;padding:1.4rem4.2rem;padding-right:3.1rem;font-size:1.4rem;color:var(--inv);letter-spacing:1.1rem;text-transform:uppercase;-webkit-transition:all600mscubic-bezier(0.77,0,0.175,1);transition:all600mscubic-