.color-gradient-box{background:linear-gradient(90deg,#fff,transparent),linear-gradient(0deg,#000,transparent),linear-gradient(90deg,red,#ff0 17%,#0f0 33%,#0ff,#00f 67%,#f0f 83%,red);isolation:isolate;position:relative}.hue-bar{background:linear-gradient(180deg,red 0,#ff0 17%,#0f0 33%,#0ff,#00f 67%,#f0f 83%,red)}