.status a:not([href^="https://friends.nico/"]) .display-name:before {
content: '【連合】';
}
.status a[href*=".m.to/"] .display-name:before {
color: #AA0;
content: '【m.to】';
}

.status a[href^="https://knzk.me/"] .display-name:before {
color: #F00;
content: '【神崎】';
}

.status a[href^="https://mstdn.jp/"] .display-name:before {
color: #A00;
content: '【JP】';
}
.status a[href^="https://pawoo.net/"] .display-name:before {
color: #0AF;
content: '【Pawoo】';
}

.status a:not([href^="https://friends.nico/"]) .display-name:before {
content: '【連合】';
}

.status a[href*=".m.to/"] .display-name:before {
color: #AA0;
content: '【m.to】';
}

.status a[href^="https://knzk.me/"] .display-name:before {
color: #F00;
content: '【神崎】';
}

.status a[href^="https://mstdn.jp/"] .display-name:before {
color: #A00;
content: '【JP】';
}

.status a[href^="https://pawoo.net/"] .display-name:before {
color: #0AF;
content: '【Pawoo】';
}

.status a:not([href^="https://friends.nico/"]) .display-name:before {
content: '【連合】';
}
/*↑URLには自分のインスタンスを指定してください*/
/*↓自分のインスタンスは除外したほうが見やすいです*/
.status a[href^="https://mstdn.jp/"] .display-name:before {
color: #A00;
content: '【JP】';
}

.status a[href^="https://pawoo.net/"] .display-name:before {
color: #0AF;
content: '【Pawoo】';
}

.status a[href^="https://friends.nico/"] .display-name:before {
color: #0A0;
content: '【ニコ】';
}