Custom CSS not working for me

[NameIsPie]

I've been using this custom css for some time, however it recently stopped working and I don't know how to fix it. Example (Not Mine)

Custom CSS:
/*＊＊＊＊＊カスタムCSS＊＊＊＊＊*/
/*アバターの大きさと明るさを決めるよ　あと線を消してるよ*/
.avatar {
height:57px !important;
width:57px !important;
border-radius:10px !important;
filter: brightness(70%);
}
/*しゃべったときの状態の設定してるよ*/
.speaking {
border-color:rgba(0,255,0,0.7) !important;
position:relative;
animation-name: speak-now;
animation-duration: 5000ms;
animation-fill-mode:forwards;
filter: brightness(100%) ;
}
/*しゃべってるときのアニメーションの設定だよ*/
@keyframes speak-now {
0% { bottom:0px; }
5% { bottom:10px; }
10% { bottom:0px; }
15% { bottom:10px; }
20% { bottom:0px; }
25% { bottom:10px; }
30% { bottom:0px; }
35% { bottom:10px; }
40% { bottom:0px; }
45% { bottom:10px; }
50% { bottom:0px; }
55% { bottom:10px; }
60% { bottom:0px; }
65% { bottom:10px; }
70% { bottom:0px; }
75% { bottom:10px; }
80% { bottom:0px; }
85% { bottom:10px; }
90% { bottom:0px; }
95% { bottom:10px; }
100% { bottom:0px; }
}
/* アバター及びネームタグ表示位置調整だよ*/
li.voice-state{
width: 70px;
height: 90px;
position: static;
display: inline-block;
}
.user{
background: rgba(0,0,0,.7);
padding: 4px 5px 0px !important;
border-radius: 4px;
display: inline-block;
}
span.name{
display: inline-block;
position: relative;
width: 55px;
height: 17px;
line-height: 17px !important;
white-space: nowrap;
text-overflow: clip;
text-align: center;
background-color: rgba(0,0,0,0) !important;
padding: 0 !important;
overflow: hidden;
}
body {
background-color: rgba(0, 0, 0, 0);
margin: 0;
padding: 0;
overflow: hidden;
}
/*＊＊＊＊＊カスタムCSS終わり＊＊＊＊＊*/

 

[imaliyah]

my custom css stopped working all the sudden as well, did you find a fix for this?