styles.css

.button {
  min-width: 120px;
  min-height: 120px;
  max-width: 120px;
  max-height: 120px;
  object-fit: contain;
}
.button:hover {
  color: black;
}
.h1 {
  font-family: "Brush Script MT", cursive;
  color: red;
}
.row {
  display: flex;
  width: 100%;
  justify-content: space-around;
  margin-bottom: 2rem;
}
.disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.cursor-not-allowed {
  cursor: not-allowed !important;
}
.loader {
  color: #349cdb;
  font-size: 50px;
  margin: 40vh auto;
  text-indent: -9999em;
  overflow: hidden;
  width: 1em;
  height: 1em;
  border-radius: 50%;
  position: relative;
  transform: translateZ(0);
  animation: mltShdSpin 1.7s infinite ease, round 1.7s infinite ease;
}

@keyframes mltShdSpin {
  0% {
    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em,
      0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
  5%,
  95% {
    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em,
      0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
  10%,
  59% {
    box-shadow: 0 -0.83em 0 -0.4em, -0.087em -0.825em 0 -0.42em,
      -0.173em -0.812em 0 -0.44em, -0.256em -0.789em 0 -0.46em,
      -0.297em -0.775em 0 -0.477em;
  }
  20% {
    box-shadow: 0 -0.83em 0 -0.4em, -0.338em -0.758em 0 -0.42em,
      -0.555em -0.617em 0 -0.44em, -0.671em -0.488em 0 -0.46em,
      -0.749em -0.34em 0 -0.477em;
  }
  38% {
    box-shadow: 0 -0.83em 0 -0.4em, -0.377em -0.74em 0 -0.42em,
      -0.645em -0.522em 0 -0.44em, -0.775em -0.297em 0 -0.46em,
      -0.82em -0.09em 0 -0.477em;
  }
  100% {
    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em,
      0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
}

@keyframes round {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}