style.css

body {
  font-family: -apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, helvetica, Cantarell, Ubuntu, roboto, noto, arial, sans-serif;
}
table {
  border-collapse: collapse;
  width: 100%;
}
th, td {
  border: 1px solid #ddd;
  padding: 8px 12px;
  text-align: left;
  white-space: nowrap;
}
th {
  background-color: #f4f4f4;
}
.progress-bar {
  display: inline-block;
  background-color: #4caf50;
  color: white;
  height: 20px;
  line-height: 20px;
  text-align: center;
  overflow: hidden;
  white-space: nowrap;
  box-sizing: border-box;
}
.progress-bar-outer-label {
  display: none;
  padding-left: .5em;
  height: 20px;
  line-height: 20px;
  overflow: hidden;
}
.progress-bar.low {
  color: transparent;
  user-select: none;
}
.progress-bar.low + .progress-bar-outer-label {
  display: inline-block;
}
td[data-label="visitors"], td[data-label="translators"] {
  text-align: right;
}
td[data-label="completion"] {
  width: 100%;
  line-height: 0;
}
@media screen and (max-width: 600px) {
  table, thead, tbody, th, td, tr {
    display: block;
  }
  th {
    position: absolute;
    top: -9999px;
    left: -9999px;
  }
  tr {
    border: 1px solid #ccc;
    margin-bottom: 5px;
  }
  td {
    border: none;
    border-bottom: 1px solid #eee;
    padding-left: 50%;
    position: relative;
  }
  td:before {
    content: attr(data-label);
    font-weight: bold;
    left: 10px;
    position: absolute;
  }
  td[data-label="completion"] {
    width: inherit;
  }
  .progress-bar {
    min-width: 0;
    width: 100% !important;
  }
}