.content {
  overflow:hidden;

  &__container {
    overflow: hidden;

    &:before {
      content: '[';
      left: 0;
    }

    &:after {
      content: ']';
      position: absolute;
      right: 0;
    }

    &:after, &:before {
      top: 0;
      -webkit-animation-name: opacity;
      -webkit-animation-duration: 2s;
      -webkit-animation-iteration-count: infinite;
      animation-name: opacity;
      animation-duration: 2s;
      animation-iteration-count: infinite;
    }
    &__list {
      -webkit-animation-name: change;
      -webkit-animation-duration: 10s;
      -webkit-animation-iteration-count: infinite;
      animation-name: change;
      animation-duration: 10s;
      animation-iteration-count: infinite;

      &__item {
        line-height:40px;
        margin:0;
      }
    }
  }
}

@-webkit-keyframes opacity {
  0%, 100% {opacity:0;}
  50% {opacity:1;}
}

@-webkit-keyframes change {
  0%, 12.66%, 100% {transform:translate3d(0,0,0);}
  16.66%, 29.32% {transform:translate3d(0,-25%,0);}
  33.32%,45.98% {transform:translate3d(0,-50%,0);}
  49.98%,62.64% {transform:translate3d(0,-75%,0);}
  66.64%,79.3% {transform:translate3d(0,-50%,0);}
  83.3%,95.96% {transform:translate3d(0,-25%,0);}
}

@-o-keyframes opacity {
  0%, 100% {opacity:0;}
  50% {opacity:1;}
}

@-o-keyframes change {
  0%, 12.66%, 100% {transform:translate3d(0,0,0);}
  16.66%, 29.32% {transform:translate3d(0,-25%,0);}
  33.32%,45.98% {transform:translate3d(0,-50%,0);}
  49.98%,62.64% {transform:translate3d(0,-75%,0);}
  66.64%,79.3% {transform:translate3d(0,-50%,0);}
  83.3%,95.96% {transform:translate3d(0,-25%,0);}
}

@-moz-keyframes opacity {
  0%, 100% {opacity:0;}
  50% {opacity:1;}
}

@-moz-keyframes change {
  0%, 12.66%, 100% {transform:translate3d(0,0,0);}
  16.66%, 29.32% {transform:translate3d(0,-25%,0);}
  33.32%,45.98% {transform:translate3d(0,-50%,0);}
  49.98%,62.64% {transform:translate3d(0,-75%,0);}
  66.64%,79.3% {transform:translate3d(0,-50%,0);}
  83.3%,95.96% {transform:translate3d(0,-25%,0);}
}

@keyframes opacity {
  0%, 100% {opacity:0;}
  50% {opacity:1;}
}

@keyframes change {
  0%, 12.66%, 100% {transform:translate3d(0,0,0);}
  16.66%, 29.32% {transform:translate3d(0,-25%,0);}
  33.32%,45.98% {transform:translate3d(0,-50%,0);}
  49.98%,62.64% {transform:translate3d(0,-75%,0);}
  66.64%,79.3% {transform:translate3d(0,-50%,0);}
  83.3%,95.96% {transform:translate3d(0,-25%,0);}
}

// 6 is the number of animation.
// Here, there are 4 lines :

// 1 to 2
// 2 to 3
// 3 to 4
// 4 to 3
// 3 to 2
// 2 to 1

// 6x + 6y = 100 (100% duration)

// HERE :
// y = 4 -> Animation between two lines
// x = 12.66 -> Time spent on a line

// You can define a value and calculate the other if you want change speed or the number of lines