blockrain.css

.blockrain-game-holder {
  position: relative;
  padding: 0;
  margin: 0;
  color: #ffffff;
  font-size: 18px;
  line-height: 140%;
}

/* Touch Controls */
.blockrain-touch {
  position: absolute;
  width: 50px;
  height: 50px;
  display: block;
  border-radius: 100%;
  border: 1px solid white;
  background: rgba(255,255,255,0.2);
  z-index: 10;

  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;

  line-height: 50px;
  text-align: center;
}
.blockrain-touch:active {
  background: rgba(255,255,255,0.3);
}

.blockrain-touch-left {
  left: -60px;
  bottom: 10px;
}
.blockrain-touch-left::after {
  content: "<";
}
.blockrain-touch-right {
  right: -60px;
  bottom: 10px;
}
.blockrain-touch-right::after {
  content: ">";
}

.blockrain-touch-rotate-left {
  left: -60px;
  bottom: 80px;
}
.blockrain-touch-rotate-left::after {
  content: "<o";
}

.blockrain-touch-rotate-right {
  right: -60px;
  bottom: 80px;
}
.blockrain-touch-rotate-right::after {
  content: "o>";
}

.blockrain-touch-drop {
  left: 50%;
  margin-left: -25px;
  bottom: -60px;
}
.blockrain-touch-drop::after {
  content: ".";
}

/* Buttons */
.blockrain-btn {
  position: relative;
  display: inline-block;
  background: none;
  color: #ffffff;
  text-decoration: none;
  border: 2px solid #ffffff;
  padding: 15px 30px;
  font-size: 18px;
  text-align: center;
  cursor: default;
}
.blockrain-btn::before {
  position: absolute;
  content: "";
  top: 100%;
  left: 0px;
  bottom: 0px;
  right: 0px;
  border: 2px solid #ffffff;
  border-top: none;
  border-right: none;
  transition: all 0.2s ease;
}
.blockrain-btn::after {
  position: absolute;
  content: "";
  top: 0px;
  left: 100%;
  bottom: 0px;
  right: 0px;
  border: 2px solid #ffffff;
  border-left: none;
  border-bottom: none;
  transition: all 0.2s ease;
}

.blockrain-btn:hover::before {
  left: 5px;
  bottom: -8px;
  right: -8px;
}
.blockrain-btn:hover::after {
  top: 5px;
  bottom: -8px;
  right: -8px;
}


/* Score */
.blockrain-score-holder {
  position: absolute;
  top: 20px;
  right: 20px;
  text-align: right;
}
.blockrain-score-msg {
  font-size: 14px;  
  line-height: 100%;
  margin-bottom: 0.2em;
}
.blockrain-score-num {
  font-size: 20px;
  font-weight: bold;
}

/* Menu */
.blockrain-start-holder, .blockrain-game-over-holder {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;

  background: rgba(0,0,0,0.8);
  text-align: center;
}
.blockrain-start, .blockrain-game-over {
  position: absolute;
  top: 50%;
  width: 100%;
  transform: translateY(-50%);
}

.blockrain-start-msg, .blockrain-game-over-msg {
  font-size: 18px;
  margin-bottom: 30px;
}