style.css

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&display=swap');

body {
  font-family: 'Montserrat', sans-serif;
  background: linear-gradient(#55A979, #D9F1E3);
  min-height: 100vh;
}

/*header*/
.cabecalho {
  padding: 10px;  
  margin-bottom: 24px;
}

.page-logo {
  width: 200px;
}

.alura-logo {
  width: 50px;
  position: absolute;
  top: 10px;
  right: 10px;
}

/*main*/
main {
  text-align: center;
  width: 90vw;
  margin: 0 auto;
}

.page-title {
  color:#000000;
  font-size: 2rem;
  font-weight: 700;  
  text-transform: uppercase;
  margin-bottom: 4rem;
}

.page-subtitle {
  color:#F0FFFF;
  font-size: 1.8em;
  margin-bottom: 2rem;
}

.notas__lista {
  width: 80%;
  margin: 0 auto;
  max-width: 700px;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
}


.notas__item input {
  padding: 8px;
  border-radius: 5px;
  width: 100px;
  text-align: center;
  margin: 1rem;
}

.button {
  border: 0;
  background: #FFD700;
  font-weight: bold;
  padding: 10px 10px;
  margin-top: 20px;
  font-size: 1em;
  border-radius: 4px;
  cursor: pointer;
  transition: 0.3s;
  text-align: center;
}

.button:hover{
  opacity: 0.8;
}

.mostraResultado {
  color:#272E2A;
  font-size: 1.5em;
  font-weight: 700;
  margin: 1rem;
  line-height: 1.8em;
}