* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

/* #myVideo {
    position: fixed;
    right: 0;
    bottom: 0;
    min-width: 100%;
    min-height: 100%;
  } */

img {
  position: fixed;
  right: 0;
  bottom: 0;
  min-width: 100%;
  min-height: 100%;
  z-index: -1;
  filter: grayscale(80%);
  opacity: 0.2;
}
body {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(45deg, #0a0a0a, #272d35);
}
.calculator {
  width: 380px;
  height: 560px;
  /* border:1px solid #717377; */
  padding: 20px;
  border-radius: 16px;
  background: black;
  opacity: 0.95;
  /* box-shadow: 0px 5px 130px rgba(113,115,119,0.5); */
  box-shadow: 1px 1px 30px rgba(96, 96, 96, 0.8);
}
input {
  width: 100%;

  border: none;
  padding: 24px;
  margin: 10px;
  background: transparent;
  /* box-shadow: 0px 3px 15px rgba(84, 84, 84, 0.9); */
  font-size: 40px;
  text-align: right;
  cursor: pointer;
  color: white;
  position: relative;
  top: 10px;
  right: 10px;
}
input::placeholder {
  color: #ffffff;
}
button {
  position: relative;
  bottom: 15px;
  border: none;
  width: 60px;
  height: 60px;
  margin: 10px;
  border-radius: 50%;
  background: transparent;
  color: #ffffff;
  font-size: 20px;
  box-shadow: -1px -1px 10px rgba(108, 107, 107, 0.8);
  cursor: pointer;
}
.equalBtn {
  background-color: #fb7c14;
}
.operator {
  color: #6dee0a;
}