.b-spoiler_block > button {
  background-color: rgb(29 43 77 / 90%);
  color: #2ecc40;
}
.b-spoiler_block > button:hover {
  background-color: rgb(34 78 102 / 90%);
}
.b-spoiler_block > button:active {
  background: rgb(255 2 2);
}
.b-spoiler_block > div {
  background-color: rgb(17 34 51 / 90%);
  border-left: 4px solid #133250;
  color: #add;
}
.b-spoiler_block.is-opened > button:after {
  -webkit-transform: rotate(180deg);
  -ms-transform: rotate(180deg);
  transform: rotate(180deg);
}
.b-spoiler_block > button:after {
  -webkit-transition: margin 0.25s, -webkit-transform 0.25s;
  transition: margin 0.25s, -webkit-transform 0.25s;
  transition: transform 0.25s, margin 0.25s;
  transition: transform 0.25s, margin 0.25s, -webkit-transform 0.25s;
}