First working version of CSS generation. Bot not that good yet. Haha.

template.tictactoe.css

@@ -0,0 +1,90 @@
+body {
+  text-align: center;
+  margin: 0;
+}
+
+.tic-tac-toe {
+  height: 450px;  
+  width: 450px;  
+  margin: 50px auto 30px auto;
+  position: relative;
+  background-color: #E6E6FA;
+}
+
+.tic-tac-toe label {
+  background-color: #78bec5;
+  height: 140px;
+  width: 140px; 
+  display: none;
+  margin: 5px;
+  position: absolute;
+  cursor: pointer;
+  color: #fff;
+  -moz-transition: background-color 0.3s;
+  -o-transition: background-color 0.3s;
+  -webkit-transition: background-color 0.3s;
+  transition: background-color 0.3s;
+}
+
+.tic-tac-toe input.col-0 + label {
+  left: 0px;
+  right: 300px;
+}
+
+.tic-tac-toe input.col-1 + label {
+  left: 150px;
+  right: 150px;
+}
+
+.tic-tac-toe input.col-2 + label {
+  left: 300px;
+  right: 0px;
+}
+
+.tic-tac-toe input.row-0 + label {
+  top: 0px;
+  bottom: 300px;
+}
+
+.tic-tac-toe input.row-1 + label {
+  top: 150px;
+  bottom: 150px;
+}
+
+.tic-tac-toe input.row-2 + label {
+  top: 300px;
+  bottom: 0px;
+}
+
+.tic-tac-toe input {
+  display: none;
+}
+
+.tic-tac-toe input.turn-0 + label {
+  z-index: 0;
+  display: block;
+}
+
+{% for turn in turns_player %}
+.tic-tac-toe input.turn-{{turn}}:checked + label {
+  cursor: default;
+  background-color: red;
+  z-index: 10 !important;
+}
+
+.tic-tac-toe input.turn-{{turn}}:checked ~ .turn-{{turn + 2}} + label {
+  z-index: {{turn + 2}};
+  display: block;
+}
+{% endfor %}
+{% for m in moves %}
+.tic-tac-toe
+{% for p in m.ps %}input.turn-{{p.t}}.field-{{p.i}}:checked ~ {% endfor %}
+input.turn-{{m.n.t}}.field-{{m.n.i}} + label {
+  display: block;
+  cursor: default;
+  background-color: green;
+  z-index: 10 !important;
+}
+{% endfor %}
+