.slider {
      position: relative;
      overflow: hidden;
    }

    .slider__wrapper {
      display: flex;
      transition: transform 0.6s ease;
    }

    .slider__item {
      flex: 0 0 50%;
      max-width: 50%;
    }

    .slider__control {
      position: absolute;
      top: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      color: #fff;
      text-align: center;
      opacity: 0.5;
      height: 50px;
      transform: translateY(-50%);
      background: rgba(0, 0, 0, .5);
    }

    .slider__control:hover,
    .slider__control:focus {
      color: #fff;
      text-decoration: none;
      outline: 0;
      opacity: .9;
    }

    .slider__control_left {
      left: 0;
    }

    .slider__control_right {
      right: 0;
    }

    .slider__control::before {
      content: '';
      display: inline-block;
      width: 20px;
      height: 20px;
      background: transparent no-repeat center center;
      background-size: 100% 100%;
    }

    .slider__control_left::before {
      background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23fff' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E");
    }

    .slider__control_right::before {
      background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23fff' viewBox='0 0 8 8'%3E%3Cpath d='M2.75 0l-1.5 1.5 2.5 2.5-2.5 2.5 1.5 1.5 4-4-4-4z'/%3E%3C/svg%3E");
    }

    .slider__item>div {
      line-height: 250px;
      font-size: 100px;
      text-align: center;
    }
   
   
   
   
/* картинка на странице */
.minimized {

  cursor: pointer;
  border: 1px solid #FFF;
 
}
 
.minimized:hover {
  border: 1px solid yellow;
}
 
/* увеличенная картинка */
#magnify {
  display: none;
 
  /* position: absolute; upd: 24.10.2016 */
  position: fixed;
  max-width: 600px;
  height: auto;
  z-index: 9999;
}
 
#magnify img {
  width: 100%;
}
 
/* затемняющий фон */
#overlayphoto {
  display: none;
 
  background: #000;
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  opacity: 0.5;
  z-index: 9990;
}
 
/* кнопка закрытия */
#close-popup {
  width: 30px;
  height: 30px;
 
  background: #FFFFFF;
  border: 1px solid #AFAFAF;
  border-radius: 15px;
  cursor: pointer;
  position: absolute;
  top: 15px;
  right: 15px;
}
 
#close-popup i {
  width: 30px;
  height: 30px;
  background: url(https://codernote.ru/files/cross.png) no-repeat center center;
  background-size: 16px 16px;
  display: block;
}
 
@keyframes rota {
 25% { transform: rotate(360deg); }
}
 
#close-popup:hover {
  animation: rota 4s infinite normal;
  -webkit-animation-iteration-count: 1;
  animation-iteration-count: 1;
}