* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
  }

  /* FLEX BOX  */

  .flex {
      display: flex;
  }


  .justify-center {
      justify-content: center;
  }

  .space_between {
      justify-content: space-between;
  }

  .aling-center {
      align-items: center;
  }

  .flex-colounm {
      flex-direction: column;
  }

  .justify_between {
      justify-content: space-between;
  }


  /* End flex box */


  .li_style_none {
      list-style: none;
  }

  .underline_none {
      text-decoration: none;
  }

  .text-center {
      text-align: center;
  }

  .margin-right {
      margin-left: 30px;
  }



  .width_100per {
      width: 100%;
  }

  .height_100per {
      height: 100%;
  }

  .text-right {
      text-align: right;
  }

  .margin_L_R-auto {
      margin-left: auto;
      margin-right: auto;
  }

  .heading {
      font-size: 2.4em;
      padding-bottom: 5px;
      margin-bottom: 21px;
      border-bottom: 3px solid;
      font-weight: bolder;
  }

  .btn {
      margin-top: 5px;
      cursor: pointer;
      font-weight: bolder;
      padding: 5px 9px;
      font-size: 1.1em;
      border-radius: 5px;
      background: #0076ff;
      color: white;
      border: none;
      outline: none;
      box-shadow: 2px 2px 0px red;
  }

  .btn:active {
      box-shadow: -2px -2px 0px red;
      ;
  }


  .clr_white {
      color: white;
  }


  /* Test background color  */

  .test_bg_red {
      background: red;
  }

  .test_bg_blue {
      background-color: blue;
  }

  .test_bg_green {
      background-color: green;
  }

  .position_absloute {
      position: absolute;
  }