* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    background: #091000;
    font-family: Helvetica, Arial, sans-serif;
}

.exerciciojq1 {
    margin: 20px;
    padding: 20px;
    background-color: #222;
    border-radius: 8px;
    color: #fff;
    text-align: center;
} 

.destaque {
    color: #000000;
    background-color: #ffffff;
    font-size: 1rem;
    line-height: 1.1rem;
    padding: 10px;
    border-radius: 8px;
}


.exerciciojq2 {
    margin: 20px;
    padding: 20px;
    background-color: #222;
    border-radius: 8px;
    color: #fff;
    text-align: center;
} 

#bloco {
      width: 100%;
      padding: 20px;
      background-color: #4dabf7;
      color: white;
      margin-bottom: 10px;
    }

.exerciciojq3 {
    margin: 20px;
    padding: 20px;
    background-color: #222;
    border-radius: 8px;
    color: #fff;
    text-align: center;
} 

#box {
      width: 100%;
      padding: 20px;
      background-color: #51cf66;
      color: white;
      margin-top: 10px;
    }