style.css

* {
  margin: 0px;
  padding: 0px;
  box-sizing: border-box;
}
body {
  height: 100%;
  width: 100%;
  font-family: Arial, Helvetica, sans-serif;
  background: rgb(219, 210, 193);
}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #ddd;
  background: #000;
  font-size: 14px;
  padding: 15px;
  border: 1px solid steelblue;
  height: 75px;
  width: 75px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all 0.3s linear;
}

.play-btn:hover {
  color: #fff;
  font-weight: 600;
}

.play-btn.hide {
  display: none;
}

.circle {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  height: 60px;
  width: 60px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 999999;
}

.triangleUp {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  height: 0px;
  width: 0px;
  border-left: 25px solid transparent;
  border-right: 25px solid transparent;
  border-bottom: 50px solid;
  cursor: pointer;
  z-index: 999999;
}

.triangleDown {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  height: 0px;
  width: 0px;
  border-left: 25px solid transparent;
  border-right: 25px solid transparent;
  border-top: 50px solid;
  cursor: pointer;
  z-index: 9999999;
}

.square {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  height: 45px;
  width: 45px;
  background: violet;
  cursor: pointer;
  z-index: 99999;
}

.rectangleHorizontal {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  height: 40px;
  width: 60px;
  cursor: pointer;
  z-index: 99999;
}

.rectangleVertical {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  height: 60px;
  width: 40px;
  cursor: pointer;
  z-index: 99999;
}

.score-bar {
  position: absolute;
  background: inherit;
  width: 110px;
  margin: 3px 1px;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 5px 8px;
  font-size: 14px;
  cursor: pointer;
  display: none;
}
.score-bar.show {
  display: block;
}

.score,
.response-time,
.life {
  width: 60%;
  padding: 0px 5px;
  border-radius: 8px;
  /* margin: 3px; */
  color: rgb(3, 3, 80);
  font-weight: 600;
  font-size: 9.5px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.score {
  background: linear-gradient(
    285deg,
    rgba(255, 255, 255, 0.6) 50%,
    rgba(255, 255, 255, 0.8) 50%
  );
}
.response-time {
  margin-top: 3px;
  background: linear-gradient(
    285deg,
    rgba(255, 255, 255, 0.6) 50%,
    rgba(255, 255, 255, 0.8) 50%
  );
}
.life {
  margin-top: 3px;
  background: linear-gradient(
    285deg,
    rgba(255, 255, 255, 0.6) 50%,
    rgba(255, 255, 255, 0.8) 50%
  );
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.life .life-bar {
  position: relative;
  width: 65%;
  height: 5px;
  margin-left: 3px;
  background: inherit;
  border-radius: 8px;
}

.life .life-bar .progress {
  position: absolute;
  left: 0px;
  border-radius: inherit;
  height: 100%;
  width: 100%;
  transition: all 1.4s linear;
  background:lime;
}

.output {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: rgb(121, 2, 2);
  border: 3px solid grey;
  border-top-left-radius: 40px;
  border-bottom-right-radius: 40px;
  padding: 25px 40px;
  color: #ccc;
  font-weight: 800;
  font-size: 16px;
  text-transform: capitalize;
  display: none;
  text-align: center;
}
.output.show {
  display: block;
}

.roll {
  position: absolute;
  top: 50%;
  left: 50%;
  height: 40px;
  width: 40px;
  border-radius: 50%;
  background: transparent;
  border: 6px solid rgb(129, 86, 7);
  border-top-color: #aaa;
  transform: translate(-50%, -50%);
  display: none;
}
.roll.show {
  display: block;
}

.header-title {
  position: absolute;
  left: 50%;
  top: 2%;
  transform: translateX(-50%);
  background: #eee;
  margin: 5px 0px;
  padding: 4px 10px;
  border-radius: 8px;
  border: 3px solid #aaa;
  font-weight: 800;
  font-size: 16px;
  color: rgb(6, 6, 111);
}

.header-title.hide {
  display: none;
}
.welcome {
  position: absolute;
  left: 50%;
  top: 9%;
  transform: translateX(-50%);
  font-size: 13px;
  color: rgb(2, 2, 37);
}

.welcome.hide {
  display: none;
}

.nav-bar {
  position: fixed;
  top: 0px;
  bottom: 70%;
  width: 35%;
  display: flex;
  background: rgb(189, 186, 182);
  border-top-right-radius: 8px;
  border-bottom-right-radius: 8px;
  transform: translateX(-100%);
  transition: all 0.3s linear;
}

.nav-bar.active {
  transform: translateX(0%);
}

.links {
  position: relative;
  height: 70%;
  width: 100%;
  padding: 10px 15px;
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  list-style: none;
}

.links a {
  text-decoration: none;
  padding: 5px 0px;
  font-weight: 800;
  font-size: 17px;
  color: rgb(2, 2, 83);
}
.hamburger {
  position: absolute;
  height: 30px;
  width: 40px;
  top: 1%;
  left: 1%;
  border-radius: 5px;
  background: transparent;
  cursor: pointer;
  z-index: 99999;
}

.hamburger.hide {
  display: none;
}

.line {
  height: 3px;
  width: 30px;
  background: #111;
  margin: 5px;
}

.line.active {
  background: #111;
}

footer {
  position: absolute;
  bottom: 1%;
  left: 50%;
  color: #333;
  font-size: 11px;
  transform: translateX(-50%);
}

/* handle input */

.inputContainer {
  position: absolute;
  top: 50%;
  left: 50%;

  padding: 15px;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgb(128, 109, 75);
}

.userInput {
  padding: 5px 5px;
  text-align: center;
  outline: none;
  border: 5px groove #888;
  font-weight: 600;
  font-size: 14px;
  color: rgb(3, 3, 73);
  text-transform: capitalize;
}

.scorePlate {
  color: rgb(2, 2, 44);
  font-weight: 700;
}
.saveBtn {
  background: #111;
  color: #ddd;

  font-weight: 600;
  font-size: 14px;
  padding: 5px 15px;
  border-radius: 10px;
  cursor: pointer;
  margin: 10px;
  outline: none;
}
.saveBtn:hover {
  color: #fff;
  letter-spacing: 0.1rem;
  font-size: 15px;
}

/* score Boar */

.scoreBoard {
  position: absolute;
  left: 50%;
  top: 15%;
  list-style: none;
  border-radius: 5px;
  background: rgb(1, 1, 63);
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.scoreBoard.hide {
  display: none;
}

.scoreBoard li {
  color: #000;
  margin: 1px 3px;
  padding: 5px 8px;
  font-weight: 600;
}

.scoreBoard .divElem {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.scoreBoard .divElem span {
  color: #eee;
  font-weight: 600;
}

.scoreBoard p {
  background: #111;
  margin: 3px;
  border-radius: 2px;
  color: #ccc;
}