hudozka/assets/style/timeline.scss

.timeline{
  min-width: 400px;
  position: relative;
  margin: 0 0 50px;

  &:before{
    content: '';
    width: 10px;
    height: 10px;
    position: absolute;
    background-color: black;
    top: 0;
    left: calc(50% - 6px);
    border-radius: 50%;
    z-index: 1;
  }
}

.post{
  position: relative;
  display: flex;

  .head, .body{
    position: relative;
    width: 50%;
    box-sizing: border-box;
  }

  .head {
    padding: 25px 20px;
  }

  .body {
    padding: 0 20px;
  }

  &.left{
    flex-flow: row-reverse;

    .body{
      text-align: right;
    }

    .head{
      text-align: left;
    }

    .body:after{
      content: '';
      position: absolute;
      width: 12px;
      height: calc(100% - 98px);
      top: 98px;
      right: 0;
      background: url(/graphics/timeline-line.png) no-repeat right;
      background-size: 2px 100%;
    }

    .head:after{
      content: '';
      position: absolute;
      width: 12px;
      height: 98px;
      top: 0;
      left: -12px;
      background: url(/graphics/timeline-arrow-left.png) no-repeat;
    }
  }

  &.right{
    flex-flow: row;

    .body{
      text-align: left;
    }

    .head{
      text-align: right;
      margin: 0 10px;
    }

    .body:after{
      content: '';
      position: absolute;
      width: 100px;
      height: calc(100% - 98px);
      top: 98px;
      left: -12px;
      background: url(/graphics/timeline-line.png) no-repeat;
      background-size: 2px 100%;
    }

    .head:after{
      content: '';
      position: absolute;
      width: 12px;
      height: 98px;
      top: 0;
      left: calc(100% - 2px);
      background: url(/graphics/timeline-arrow-right.png) no-repeat;
    }
  }
}

@media screen and (max-device-width: 400px) {
  .timeline {
    min-width: 0;
    position: relative;
    margin: 0 0 50px;

    .head{
      margin: 0;
      padding: 0;
    }

    .body{
      margin: 0 0 40px;
      padding: 0;
    }

    .body p{
      text-align: left;
      margin: 0 0 2px;
      padding: 0;
    }

    .post {
      position: relative;
      display: flex;

      .head, .body {
        position: relative;
        width: 90%;
        box-sizing: border-box;
      }

      &.left {
        display: block;

        .body:after, .head:after {
          background: none;
        }
      }

      &.right {
        display: block;

        .body:after, .head:after {
          background: none;
        }
      }

      &.left .head {
        text-align: left;
      }

      &.right .head {
        text-align: left;
      }

      .head {
        padding: 5px 20px;
      }

      .body {
        padding: 0 20px;
      }
    }
  }
}