body {
  color: #161616;
  font-size: 16px;
  line-height: 1.3;
  font-family: 'HelveticaNeueCyr', Arial, Helvetica;
  font-weight: 300;
  margin: 0;
  background: #efdfcf;
  -webkit-font-smoothing: antialiased;
}
* {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
a {
  color: inherit;
  -webkit-transition: 0.2s;
  -o-transition: 0.2s;
  transition: 0.2s;
  text-decoration: none;
}
a:hover {
  color: #FFBF00;
}
img,
video,
iframe {
  max-width: 100%;
}

.header {
  text-align: center;
}
.header img {
  width: 200px;
  margin: 20px auto;
}

.quest_images {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 100%;
  position: relative;
  opacity: 0.2;
}
.quest_image {
  width: calc(25% - 10px);
  margin: 10px;
  overflow: hidden;
  height: 500px;
  position: relative;
  border-radius: 10px;
}
.quest_image img {
  display: none;
}
.quest_container {
  position: relative;
  margin-bottom: 40px;
}
.quest_btn {
  -webkit-box-shadow: 0 2px 22px #c91655;
  box-shadow: 0 2px 22px #c91655;
  border-radius: 30px;
  font-size: 16px;
  text-align: center;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 240px;
  background: #c91655;
  color: #ffffff;
  text-transform: uppercase;
  font-weight: 400;
  height: 52px;
  cursor: pointer;
  -webkit-transition: 0.3s;
  -o-transition: 0.3s;
  transition: 0.3s;
}
.quest_btn:hover {
  background: #a20d41;
  color: #ffffff;
}

.quest_container .quest_btn {
  position: absolute;
  top: calc(50% - 25px);
  left: calc(50% - 120px);
}

.quest_images.active {
  opacity: 1;
}

.descr {
  text-align: center;
  margin-top: 30px;
  font-size: 20px;
  font-weight: 600;
}
h1 {
  text-align: center;
  margin: 30px 0;
  font-size: 26px;
  line-height: 120%;
}

.ans {
  opacity: 0;
  visibility: hidden;
  margin-bottom: 60px;
  -webkit-transition: 0.5s;
  -o-transition: 0.5s;
  transition: 0.5s;
}
.ans.active {
  opacity: 1;
  visibility: visible;
  padding: 30px;
  background: #ffffff;
  border-radius: 10px;
  margin-left: auto;
  margin-right: auto;
  max-width: 600px;
}
.a-name {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 16px;
}
.a-text {
  font-size: 16px;
  margin-bottom: 30px;
}

.btn-row {
  display: none;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.btn-row.active {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
.btn-row .quest_btn {
  max-width: 360px;
  width: 100%;
  margin-bottom: 80px;
}




@media(max-width: 767px){
  h1 {
    font-size: 20px;
  }
  .quest_image {
    height: auto;
  }
  .a-name {
    font-size: 22px;
  }
  .ans.active {
    padding: 20px;
  }

}