.hr1 {
 position: relative;
 height: 3px;
 background-color: #00bcd4;
 background-image: -webkit-linear-gradient(135deg, #fff59d 10%, #ff8a80 50%, #ff3d00 100%);
 background-image: linear-gradient(135deg, #fff59d 10%, #ff8a80 50%, #ff3d00 100%);
}