main.css

html,
body {
  min-height: 100vh;
  margin: 0;
  padding: 0;
}

html {
  overflow-y: scroll;
}

body {
  display: flex;
  flex-direction: column;
  background: #333 url("background.jpg") no-repeat fixed center center;
  background-size: cover;
  color: #eee;
  font: 15pt/17pt Homenaje, Impact, sans-serif;
  cursor: default;
  text-align: center;
}

::-moz-selection {
  color: black;
  background: #FBB406;
}

::selection {
  color: black;
  background: #FBB406;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: normal;
}

em {
  font-style: normal;
}

.header {
  font-size: 24pt;
  text-transform: uppercase;
  line-height: 1;
  padding-bottom: 10px;
  margin-bottom: 10px;
}

body.choicePage {
  display: table;
  width: 100%;
}

body.choicePage .wrapper {
  display: table-cell;
  width: 100%;
  vertical-align: middle;
}

.header * {
  position: relative;
  z-index: 11;
}

.header .links {
  text-align: center;
  line-height: 1.2;
  font-size: 50%;
  z-index: 20;
}

.header a.permalink {
  color: white;
  padding: 0.5em 0;
  -moz-user-select: text;
  -webkit-user-select: text;
  -ms-user-select: text;
  -o-user-select: text;
  user-select: text;
}

.header a.reset {
  color: red;
}

.header,
.summary {
  background-color: rgba(0, 0, 0, 0.5);
}

.header h1 {
  color: #FFDE09;
  font-size: 140%;
}

.header h1 em {
  font-style: normal;
  font-size: 200%;
  position: relative;
  top: 0.15em;
}

.header h2 {
  color: #FBB406;
  font-size: 150%;
}

.header h3 {
  font-size: 80%;
}

.treeCollection {
  text-align: center;
  width: 741px;
  height: 396px;
  margin: 20px auto 30px auto;
  position: relative;
  z-index: 20;
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  -o-user-select: none;
  user-select: none;
}

.treewrapper {
  float: left;
  width: 247px;
  height: 396px;
}

.tree {
  width: 174px;
  text-align: center;
  margin: 20px auto 0;
}

.bglayer {
  position: absolute;
  height: 396px;
  width: 247px;
}

.bglayer.color {
  height: 80px;
}

.green .gray {
  background: url("skill_bg_green_gray.png") transparent;
}

.blue .gray {
  background: url("skill_bg_blue_gray.png") transparent;
}

.red .gray {
  background: url("skill_bg_red_gray.png") transparent;
}

.green .color {
  background: url("skill_bg_green.png") transparent;
}

.blue .color {
  background: url("skill_bg_blue.png") transparent;
}

.red .color {
  background: url("skill_bg_red.png") transparent;
}

.skill {
  padding: 3px;
  width: 52px;
  height: 53px;
  cursor: pointer;
  position: relative;
  float: left;
}

.skill>img {
  width: 52px;
  height: 53px;
}

.actionSkill {
  display: inline-block;
  position: relative;
  cursor: pointer;
}

.points {
  visibility: hidden;
  position: absolute;
  width: 35px;
  height: 21px;
  line-height: 21px;
  bottom: 0;
  right: 0;
  padding: 0 2px;
  background: url("icons/points_overlay.png") transparent;
  color: white;
}

.actionSkill .points {
  visibility: initial;
}

.skill.partial .points {
  color: #F80;
}

.skill.full .points,
.actionSkill .points {
  color: #0B0;
}

.tier,
div.totalPoints,
legend {
  clear: both;
}

div.totalPoints {
  text-align: right;
}

legend,
span.totalPoints {
  text-transform: uppercase;
  font-weight: bold;
  font-size: 22pt;
  color: white;
  text-shadow: black 0 0 4px;
  position: absolute;
  display: block;
  width: 174px;
}

legend {
  width: 150px;
  text-align: left;
}

.push1 {
  margin-left: 58px;
}

.skill.partial .perLevel,
.skill.full .perLevel {
  display: none;
}

.tree .description,
.actionSkill .description
 {
  display: none;
  position: absolute;
  top: 0;
  width: 200px;
  z-index: 21;
  background-color: #111;
  color: white;
  padding: 0 0.25em 0.5em;
  text-align: center;
}

.green .description,
.blue .description {
  left: 110%;
}

.red .description {
  right: 110%;
}

.actionSkill .description {
  top: 10%;
  left: 105%;
}

.tier[data-level='4'] .description {
  top: auto;
  bottom: -59px;
}

.tier[data-level='4'] .description.shortTier4Description {
  top: 0;
  bottom: auto;
}

.tier[data-level='5'] .description {
  top: auto;
  bottom: 0;
}

.tree .description h2,
.actionSkill .description h2 {
  padding: 0.15em 0;
  margin-bottom: 0.15em;
  font-size: 125%;
  border-bottom: 1px solid gray;
}

.summary {
  display: flex;
  flex-grow: 1;
  flex-direction: column;
  position: relative;
  margin: 10px 0 0;
  padding: 8px 0;
  line-height: 1.1;
  z-index: 10;
}

.descriptionContainer {
  max-width: 700px;
  margin: 0 auto;
}

.descriptionContainer div.skillText {
  clear: both;
  border-top: 1px solid white;
  text-align: left;
}

.descriptionContainer strong {
  display: block;
  font-weight: normal;
  font-size: 120%;
  float: left;
  clear: left;
  width: 220px;
  margin-right: -220px;
  text-align: right;
}

.descriptionContainer div.descriptionText {
  margin: 4px 0 4px 230px;
  padding: 0;
}

.descriptionContainer .perLevel {
  display: none;
}

.footer {
  padding-top: 50px;
  margin-top: auto;
  text-align: center;
  font-size: 70%;
  color: white;
  color: rgba(255, 255, 255, 0.5);
}

.footer a {
  color: white;
  color: rgba(255, 255, 255, 0.5);
}

.footer a:hover {
  color: red;
}

.skill.partial .description em {
  color: #F80;
}

.skill.full .description em {
  color: #0B0;
}

.skill:hover .description {
  display: block;
}

.skill:hover .description:hover {
  display: none;
}

.actionSkill:hover .description {
  display: block;
}

.actionSkill:hover .description:hover {
  display: none;
}

.green legend {
  color: #41974D;
}

.blue legend {
  color: #2A87C7;
}

.red legend {
  color: #A93640;
}

a.biglink {
  display: inline-block;
  color: inherit;
  padding: 1em;
  margin: 10px;
  background: rgba(0, 0, 0, 0.5);
  border: 2px solid white;
  text-decoration: none;
}

a.biglink:hover {
  background: black;
  text-decoration: underline;
}

a.unavailable {
  cursor: not-allowed;
}

a.unavailable:hover {
  text-decoration: none;
}

img.portrait {
  position: absolute;
  position: fixed;
  height: 95%;
  left: 0;
  bottom: 0;
  z-index: 0;
}

.stamp {
  display: block;
  color: orangered;
  font-size: 0.8em;
}

@media (min-width: 80em) {
  .stamp {
    display: inline-block;
    position: absolute;
    transform: rotate(10deg);
    margin: 0.6em 0 0 0.2em;
  }
}