style.css

body {
  margin: 25px;
  
}



/* Título */

h1 {
    font-size: 30px;
}



/* Texto */

p {
  font-family: sans-serif;
}



/* Imagens */

.imagens-pequenas {
  weight: 100px;
}

.fundo-azul-transparencia {
  background-color: rgba(0, 0, 100, 0.4);
}



/* Links */

a {
  color: skyblue;
  text-decoration: none;
}



/* FlexBox */

.flex-container {
  display: flex;
  justify-content: center;
}

.flex-box {
  display: flex;
  justify-content: center;
  
}



/* Backgroud Color */
.background {
    background: white;
}

#btn {
  margin: 10px;
}

.btnRed {
  
}

.btnOrange {
  
}

.btnYellow {
  
}

.btnGreen {
   
}

.btnBlue {
  
}



/* Mensagem */
.btn-alert {
  background-color: #FFD700;
}



/* Quiz */

#points {
  background-color: mediumaquamarine;
}

.points {
  display: flex;
  justify-content: center;
}



/* Lista */

.x {
  background-color: red;
  color: white;
  border: solid 1px red;
}

.btnA {
  background-color: yellowgreen;
  color: black;
  border: solid 1px yellowgreen;
}