* {
    box-sizing: border-box;
  }
  body {
    font-family: Roboto, Arial, sans-serif;
    font-size: 16px;
    color: #666;
    line-height: 22px;
  }

  div,
  form,
  input,
  select,
  textarea,
  label,
  p {
    padding: 0;
    margin: 0;
    outline: none;
    font-size: 16px;
    line-height: 24px;
  }

  .testbox {
    padding: 20px;
    max-width: 960px;
    margin: 0 auto;
  }
  form {
    padding: 20px;
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 0 8px #006622;
  }
  fieldset {
    margin-bottom: 2em;
  }
  input,
  select,
  textarea {
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 3px;
  }
  input {
    width: 100%;
    padding: 5px;
  }
  input[type="checkbox"] {
    width: auto;
    margin-right: 1em;
  }
  input[type="date"] {
    padding: 4px 5px;
  }
  textarea {
    width: 100%;
    padding: 5px;
  }
  .item:hover p,
  .item:hover i,
  .question:hover p,
  .question label:hover,
  input:hover::placeholder {
    color: #006622;
  }
  .item input:hover,
  .item select:hover,
  .item textarea:hover {
    border: 1px solid transparent;
    box-shadow: 0 0 3px 0 #006622;
    color: #006622;
  }
  .item {
    position: relative;
    margin: 10px 0;
  }
  .item span {
    color: red;
  }


  .columns {
    display: flex;
    justify-content: space-between;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .columns div {
    width: 48%;
  }

  /* Style checkbox and radio. To do this we have to hide the defaults then we create our own */
  input[type="radio"] {
    display: none;
  }
  label.radio {
    position: relative;
    display: inline-block;
    margin: 5px 20px 15px 0;
    cursor: pointer;
  }
  .question span {
    margin-left: 30px;
  }
  .question-answer label {
    display: block;
  }
  label.radio:before {
    content: "";
    position: absolute;
    left: 0;
    width: 17px;
    height: 17px;
    border-radius: 50%;
    border: 2px solid #ccc;
  }
  input[type="radio"]:checked + label:before,
  label.radio:hover:before {
    border: 2px solid #006622;
  }
  label.radio:after {
    content: "";
    position: absolute;
    top: 6px;
    left: 5px;
    width: 8px;
    height: 4px;
    border: 3px solid #006622;
    border-top: none;
    border-right: none;
    transform: rotate(-45deg);
    opacity: 0;
  }
  input[type="radio"]:checked + label:after {
    opacity: 1;
  }
  /* end style checkbox and radio */
  .btn-block {
    margin-top: 10px;
    text-align: center;
  }
  button {
    width: 150px;
    padding: 10px;
    border: none;
    border-radius: 5px;
    background: #006622;
    font-size: 16px;
    color: #fff;
    cursor: pointer;
  }
  button:hover {
    background: #00b33c;
  }
  @media (max-width: 568px) {
    .columns div {
      width: 100%;
    }
  }
  
  .participants{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1em;
  }

  #add{
    grid-column-start: 1;
    grid-column-end: 2;
  }