.gradient-border-button{position:relative}.gradient-border-button:before{content:"";position:absolute;top:-1px;right:-1px;bottom:-1px;left:-1px;z-index:-1;background:linear-gradient(180deg,hsla(0,0%,100%,.5),hsla(0,0%,100%,.4) 10%,hsla(0,0%,100%,0));border-radius:inherit}