GDSC VIT Bhopal WinterFest Gamification of Web - CSS Code for Flappy Bird

style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins&display=swap');

.gamestartbg {
  --frame1: url("/images/fly-frame-1.png");
  --frame2: url("/images/fly-frame-2.png");
}

body{
  width: 100vw;
  height: 100vh;
  padding: 0px;
  margin: 0;
  font-family: "Poppins", sans-serif;
}

#holder{
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

#modal{
  position: absolute;
  padding: 20px;
  z-index: 1;
  background-color: wheat;
  border-radius: 32px;
  text-align: center;
  display: grid;
  gap: 20px;
  justify-content: center;
  align-items: center;
}

#modal span{
  font-size: larger;
}

#game-title{
  font-size: xx-large;
  font-weight: bold;
  line-height: 0%;
}

button{
  width: fit-content;
  margin: auto;
  padding: 8px 35px;
  background-color: peru;
  font-size: x-large;
  font-weight: 600;
  border-radius: 16px;
  border: none;
  font-family: "Poppins", sans-serif;
}

button:hover{
  background-color: brown;
  transition-duration: 0.2ms;
  color: white;
}

#restart{
  display: none;
  margin-top: 20px;
}

#scoreholder{
  position: absolute;
  top: 10px;
  left: 10px;
  font-weight: 600;
  font-size: larger;
  z-index: 2;
}

#game{
  width: 100%;
  background-color: skyblue;
  position: relative;
  overflow: hidden;
}

#block{
  width: 50px;
  height: 600px;
  background-image: url("/images/wood.jpg");
  background-size: cover;
  position: relative;
  left: 100%;
}

@keyframes block {
  0%{
    left: 100%;
  }
  100%{
    left: -50px;
  }
}

#hole{
  width: 50px;
  height: 150px;
  background-color: skyblue;
  overflow: visible;
  position: absolute;
  left: 100%;
  top: 0px;
}

#character{
  width: 65px;
  height: 65px;
  position: absolute;
  top: 25px;
  left: -100px;
  border-radius: 50%;
}

@keyframes showchr{
  0%{
    left: -100px;
  }
  100%{
    left: 50px;
  }
}

@keyframes chrdied{
  100%{
    top: 535px;
  }
}

#character-image{
  width: 100%;
  height: 100%;
  animation: chranimate 0.7s infinite ease-in-out;
}

@keyframes chranimate{
  0%{
    content: var(--frame1);
  }
  100%{
    content: var(--frame2);
  }
}