body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #222;
  }
  
  main {
    max-width: 600px;
  }
  
  .input-group {
    margin: 1rem;
  }
  
  .list-group {
    min-height: 100px;
    height: 100%;
  }
  
  .list-group-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
 .taskst:nth-child(3) {
    border-left: 1px dotted;
    border-right: 1px dotted;
}
  
  h3 {
    text-align: center;
    font-family: monospace;
  }
  
  p {
    margin: 0;
  }
  
  .completed p {
    text-decoration: line-through;
    
  }

  .in-progress p {
    border-bottom: 1px dashed #222;
    width: 46%;
    display: inline-block;
    margin-top: 7px;
  }
  .in-progress button{
    margin-right: 10px;
    display: inline-block;
    float: right;
    margin-top: 3px;
  }
  .drop {
    background: linear-gradient(#eee, transparent);
    border-radius: 4px;
  }
  .list-group-item p{
    width: 46%;
    display: inline-block;
    margin-top: 7px;
  }
  .list-group-item button{
    margin-right: 10px;
    display: inline-block;
    float: right;
    margin-top: 3px;
  }

  .taskst{
    padding-right: 13px !important;
    padding-left: 13px !important;
  }

  @media (max-width: 768px) {

    .row{
      margin-right: 0px !important;
      margin-left: 0px !important;

       .taskst{
          max-width: 33.333333%;
          h3{
            font-size: 1rem;
          }
          .list-group-item{
            position: relative;
            display: block;
            background-color: #fff;
            border: 1px solid rgba(0, 0, 0, .125);
            padding-left: 10px;
            height: 50px;
            p{
              width: 82%;
              display: inline-block;
              margin-top: 0px
            }
            button{
                margin-right: -10px;
                display: inline-block;
                float: right;
                margin-top: 3px;
                font-size: 8px;
            }
          }
      }
    }
  }