PuppyClient/Assets/Scenes/Login/LoginStyleSheet.uss

.button {
    width: 90px;
    height: 30px;
    -unity-text-outline-color: rgb(255, 255, 255);
    background-color: rgb(255, 255, 255);
    -unity-font-definition: url("project://database/Assets/Font/MaoKenZhuYuanTi-MaokenZhuyuanTi-2.ttf?fileID=12800000&guid=50a63638b44907e46a3fa871d63b7d39&type=3#MaoKenZhuYuanTi-MaokenZhuyuanTi-2");
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
    border-bottom-left-radius: 5px;
    color: rgb(24, 24, 24);
}