You can also use gradients/background images if you don’t want icon flags:
Easy one would be:
.tag[href^=“#Germany”] {
background-image: linear-gradient(0deg, rgba(255,249,0,1) 26%, rgba(255,0,0,1) 26%, rgba(255,0,0,1) 67%, rgba(0,0,0,1) 67%);
-webkit-text-fill-color: #d8dfdf;
border-block-color: slategrey;
font-weight: 800;
Which would use your image of the flag or the gradient as the background: