.app {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1200px;
  height: 540px;
  padding: 40px;
  margin: 20px auto;
  transform: translate(-50%, -55%);
  background: rgba(0,0,0,.9);
  box-sizing: border-box;
  box-shadow: 0 15px 25px rgba(0,0,0,.6);
  border-radius: 10px;
  text-align: center;

}
/* === removing default button style ===*/
.button {
  margin: 0;
  height: auto;
  background: transparent;
  padding: 0;
  border: none;
}

/* button styling */
.button {
  --border-right: 6px;
  --text-stroke-color: rgba(255,255,255,0.6);
  --animation-color: #37C4FF;
  --fs-size: 2em;
  letter-spacing: 3px;
  text-decoration: none;
  font-size: var(--fs-size);
  font-family: "Arial";
  position: relative;
  text-transform: uppercase;
  color: transparent;
  -webkit-text-stroke: 1px var(--text-stroke-color);
}
.bubble {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  box-shadow: inset 0 0 25px rgba (255, 255, 255, 0.25);
  animation: animate_4010 8s ease-in-out infinite;
}

.bubble:nth-child(2) {
  position: relative;
  zoom: 0.45;
  left: -10px;
  top: -100px;
  animation-delay: -4s;
}

.bubble:nth-child(3) {
  position: relative;
  zoom: 0.45;
  right: -80px;
  top: -300px;
  animation-delay: -6s;
}

.bubble:nth-child(4) {
  position: relative;
  zoom: 0.35;
  left: -120px;
  bottom: -200px;
  animation-delay: -3s;
}

.bubble:nth-child(5) {
  position: relative;
  zoom: 0.5;
  left: 0px;
  top: 200px;
  animation-delay: -5s;
}

@keyframes animate_4010 {
  0%,100% {
    transform: translateY(-20px);
  }

  50% {
    transform: translateY(20px);
  }
}

.bubble::before {
  content: '';
  position: absolute;
  top: 50px;
  left: 45px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #fff;
  z-index: 10;
  filter: blur(2px);
}

.bubble::after {
  content: '';
  position: absolute;
  top: 80px;
  left: 80px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  z-index: 10;
  filter: blur(2px);
}

.bubble span {
  position: absolute;
  border-radius: 50%;
}

.bubble span:nth-child(1) {
  inset: 10px;
  border-left: 15px solid #0fb4ff;
  filter: blur(8px);
}

.bubble span:nth-child(2) {
  inset: 10px;
  border-right: 15px solid #ff4484;
  filter: blur(8px);
}

.bubble span:nth-child(3) {
  inset: 10px;
  border-top: 15px solid #ffeb3b;
  filter: blur(8px);
}

.bubble span:nth-child(4) {
  inset: 30px;
  border-left: 15px solid #ff4484;
  filter: blur(12px);
}

.bubble span:nth-child(5) {
  inset: 10px;
  border-bottom: 10px solid #fff;
  filter: blur(8px);
  transform: rotate(330deg);
}
body {
  background-color: #212121;
}
.card button img{
  height: 300px;
  width: 180px;
}
.player h2{
color: rgba(255,255,255,0.6);
 display: inline;
 margin-left: 20%;
 margin-right: 20%;
}
.score h2 {
 color: rgba(255,255,255,0.6);
 display: inline;
 margin-left: 21%;
 margin-right: 21%;
}
.score {
  margin-bottom: 10px;
}
#result {
  color: rgba(255,255,255,0.6);
}