Gradient border
border: 10px solid;
border-image-source: linear-gradient(45deg, rgb(0,143,104), rgb(250,224,66));
border-image-slice: 1;
border: 10px solid;
border-image-source: linear-gradient(45deg, rgb(0,143,104), rgb(250,224,66));
border-image-slice: 1;