html {
  line-height: 1.15;
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  display: block;
  clear: both;
  width: auto;
  background: #ECECEC;
  color: #555555;
  font-family: Arial, Helvetica, sans-serif;
  text-decoration: none;
  text-align: center;
  margin: 0;
}

h1 {
  font-size: 3em;
  margin: 0.3em 0;
}

a,
button {
  display: inline-block;
}

a,
button,
table {
  background-color: transparent;
  font-family: Arial, Helvetica, sans-serif;
  font-size: larger;
  margin: 10px;
  text-decoration: none;
  outline: 0;
  cursor: pointer;
  -webkit-transition-duration: 0.3s;
  -moz-transition-duration: 0.3s;
  -o-transition-duration: 0.3s;
  transition-duration: 0.3s;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -o-user-select: none;
  user-select: none;
}

a {
  color: #708090;
}

a:hover {
  color: #5F9EA0;
}

button,
input {
  line-height: 1.15;
  margin: 0;
  overflow: visible;
}

button {
  background-color: #E7E7E7;
  color: #555;
  border: 1px solid #555;
  border-radius: 12px;
  margin-bottom: 8px;
  padding: 10px 25px;
  text-align: center;
  text-transform: none;
}

button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

button:hover,
button:disabled {
  box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.2);
  background-color: #555;
  color: white;
}

table {
  font-size: 4.5em;
  margin: 20px auto;
  table-layout: fixed;
}

table,
td {
  border: 3px solid #555;
}

td {
  height: 33%;
  width: 33%;
}

.range-container {
  display: block;
  margin: 5px auto;
  width: 200px;
}

input[type=range] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background: transparent;
  height: 30px;
  width: 100%;
  padding: 0;
  opacity: 0.8;
  transition: opacity 0.2s;
  -webkit-transition: 0.2s;
  -moz-transition: 0.2s;
  -o-transition: 0.2s;
}

input[type=range]:focus,
input[type=range]:hover {
  opacity: 1;
  outline: 0;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  margin-top: -10px;
  height: 25px;
  width: 25px;
  background: #E7E7E7;
  border: 0.5px solid black;
  border-radius: 50%;
  cursor: pointer;
}

input[type=range]::-moz-range-thumb {
  margin: 0;
  height: 25px;
  width: 25px;
  background: #E7E7E7;
  border: 0.5px solid black;
  border-radius: 50%;
  cursor: pointer;
}

input[type=range]::-ms-thumb {
  margin: 0;
  height: 25px;
  width: 25px;
  background: #E7E7E7;
  border: 0.5px solid black;
  border-radius: 50%;
  cursor: pointer;
}

input[type=range]::-webkit-slider-runnable-track {
  height: 7px;
  width: 100%;
  background: #555;
  border: 0.5px solid black;
  border-radius: 7px;
  cursor: pointer;
}

input[type=range]::-moz-range-track {
  height: 7px;
  width: 100%;
  background: #555;
  border: 0.5px solid black;
  border-radius: 7px;
  cursor: pointer;
}

input[type=range]::-ms-track {
  height: 7px;
  width: 100%;
  background: #555;
  border-color: black;
  border-style: solid;
  border-width: 0.5px;
  border-radius: 7px;
  cursor: pointer;
}

input[type=text] {
  border-radius: 10px;
  padding: 3px;
  width: 280px;
  outline: 0;
  text-decoration: none;
}

td[data-value="X"] {
  color: #556B2F;
}

td[data-value="O"] {
  color: #B22222;
}