html,
body,
canvas {
  height: 100%;
  width: 100%;
  margin: 0;
  background: black;
  font-family: "VT323", monospace;
}
body {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #121212;
}

button {
  position: relative;
  font-family: "VT323", monospace;
  background: transparent;
  width: 5rem;
  height: 2rem;
  border-radius: 20px;
  border-style: none;
  font-size: 20px;
  color: #6ec641;
  border: none;
  z-index: 1000;
}

button:focus {
  border: none;
  outline: none;
  background: transparent;
}

.menu-text-frame {
  width: 50%;
  background: linear-gradient(
    186.1deg,
    rgba(110, 198, 65, 0.2) 13.63%,
    rgba(110, 198, 65, 0) 95.41%
  );
  border: 10px solid;
  border-image: linear-gradient(
    180deg,
    rgba(137, 238, 86, 0.966) 22.63%,
    rgba(32, 85, 6, 0.767) 95.41%
  );
  border-image-slice: 80;
  margin-left: 2rem;
  height: 50%;
}

.menu-text {
  color: #6ec641;
  font-size: 1.2rem;
  padding: 1rem;
  position: relative;
  letter-spacing: 5%;
}

.button-container {
  position: relative;
  width: 20%;
  top: 20%;
}

.about-link {
  width: 78%;
  position: relative;
  right: 2rem;
}

.title {
  font-size: 8rem;
  color: #6ec641;
  margin: 0;
  color: #6ec641;
  text-shadow: -5px 5px 0px #519230, -10px 10px 0px #3f7225,
    -15px 15px 0px #2c501a;
}

#sonar-animation {
  display: flex;
  position: relative;
  left: 5rem;
  bottom: 2rem;
}

#about {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  width: 80%;
  left: 37%;
}

#start-game {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  width: 80%;
  left: -50%;
  border: 0 none !important;
  outline: 0 !important;
}

#main-menu {
  width: 960px;
  height: 720px;
  position: fixed;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  background-image: url(../assets/images/menu-background.png);
  background-size: cover;
}

#menu-frame {
  background-image: url(../assets/images/menu-frame.png);
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 70%;
  width: 80%;
  position: relative;
  text-align: center;
}