body {
  margin: 0;
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Symbol","Noto Color Emoji";
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: #212529;
  text-align: left;
  background-color: #fff;
}

footer {
  margin-top: 20px;
}

.container {
  display: table;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

textarea {
  width: 100%;
  max-width: 550px;
  height: 120px;
  line-height: 1.5;
  padding: .375rem .75rem;
  color: #495057;
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid #ced4da;
  border-radius: .25rem;
  box-sizing: border-box;
}

.btn_group {
  display: inline-block;
  margin: 10px;
}

/* martinsanne/pen/vYOpwJ */
.tbl {
  border-collapse: collapse;
  width: 100%;
}
.tbl th {
  background-color: #333;
  color: #FDFDFD;
}
.tbl tbody tr:nth-child(even) {
  background-color: #DDD;
}

.tbl th, .tbl td {
  text-align: left;
  padding: 5px;
}
.tbl .cell-label {
  display: none;
}

@media screen and (max-width: 780px) {
  .tbl th {
    display: none;
  }
  .tbl tr td {
    float: left;
    clear: left;
    display: block;
    width: 98%;
  }
  .tbl tr td:last-child {
    padding-bottom: 20px;
    border-bottom: 0;
  }
  .tbl .cell-label {
    display: block;
    float: left;
  }
  .tbl .cell-content {
    display: block;
    float: right;
  }
}