*{
  margin: 0;
}

body{
  text-align: center;
  background-color: #ffd5cb;
}

img{
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  max-width: 100%;
  z-index: 0;
}

.a{
  background-color: #f164de;
  padding: 10px;
}

.b_day{
  font-size: 32px;
  font-family: 'Pacifico', cursive;
  background: -webkit-linear-gradient(#ffff00, #ff1493);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  -webkit-animation: hue 3s infinite ease-in-out;
}

.wish{
  margin: auto;
  color: rgb(241, 9, 79);
  font-size: 40px;
  max-width: 600px;
  font-family: 'Pacifico', cursive;
  margin-top: 10px;
}

@-webkit-keyframes hue {
  from{ -webkit-filter: hue-rotate(0deg);}
  to{ -webkit-filter: hue-rotate(360deg);}
}

.confetti {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  width: 100%;
  height: 350px;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  width: 8px;
  height: 16px;
  background: #ffd300;
  top: 0;
  opacity: 0;
}
.confetti-piece:nth-child(1) {
  left: 7%;
  -webkit-transform: rotate(-40deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 182ms;
  -webkit-animation-duration: 1116ms;
}
.confetti-piece:nth-child(2) {
  left: 14%;
  -webkit-transform: rotate(4deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 161ms;
  -webkit-animation-duration: 1076ms;
}
.confetti-piece:nth-child(3) {
  left: 21%;
  -webkit-transform: rotate(-51deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 481ms;
  -webkit-animation-duration: 1103ms;
}
.confetti-piece:nth-child(4) {
  left: 28%;
  -webkit-transform: rotate(61deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 334ms;
  -webkit-animation-duration: 708ms;
}
.confetti-piece:nth-child(5) {
  left: 35%;
  -webkit-transform: rotate(-52deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 302ms;
  -webkit-animation-duration: 776ms;
}
.confetti-piece:nth-child(6) {
  left: 42%;
  -webkit-transform: rotate(38deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 180ms;
  -webkit-animation-duration: 1168ms;
}
.confetti-piece:nth-child(7) {
  left: 49%;
  -webkit-transform: rotate(11deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 395ms;
  -webkit-animation-duration: 1200ms;
}
.confetti-piece:nth-child(8) {
  left: 56%;
  -webkit-transform: rotate(49deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 14ms;
  -webkit-animation-duration: 887ms;
}
.confetti-piece:nth-child(9) {
  left: 63%;
  -webkit-transform: rotate(-72deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 149ms;
  -webkit-animation-duration: 805ms;
}
.confetti-piece:nth-child(10) {
  left: 70%;
  -webkit-transform: rotate(10deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 351ms;
  -webkit-animation-duration: 1059ms;
}
.confetti-piece:nth-child(11) {
  left: 77%;
  -webkit-transform: rotate(4deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 307ms;
  -webkit-animation-duration: 1132ms;
}
.confetti-piece:nth-child(12) {
  left: 84%;
  -webkit-transform: rotate(42deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 464ms;
  -webkit-animation-duration: 776ms;
}
.confetti-piece:nth-child(13) {
  left: 91%;
  -webkit-transform: rotate(-72deg);
  -webkit-animation: makeItRain 1000ms infinite ease-out;
  -webkit-animation-delay: 429ms;
  -webkit-animation-duration: 818ms;
}
.confetti-piece:nth-child(odd) {
  background: #7431e8;
}
.confetti-piece:nth-child(even) {
  z-index: 1;
}
.confetti-piece:nth-child(4n) {
  width: 5px;
  height: 12px;
  -webkit-animation-duration: 2000ms;
}
.confetti-piece:nth-child(3n) {
  width: 3px;
  height: 10px;
  -webkit-animation-duration: 2500ms;
  -webkit-animation-delay: 1000ms;
}
.confetti-piece:nth-child(4n-7) {background: red;}

@-webkit-keyframes makeItRain {
  from {opacity: 0;}
  50% {opacity: 1;}
  to {-webkit-transform: translateY(350px);}
}

#song{
  
}