* {
    padding: 0%;
    margin: 0%;
}

html,body {
    height: 100%;
}

.head {
    margin: 0 auto;
    background-image: url('../imagens/LOGO\ PRETA.png');
    width: 300px;
    height: 200px;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.head > a {
    float: right; 
    padding: 10px;
    margin-top: 35px;
    padding-right: 50px;
    text-decoration: none;
    text-align: center;
    font-family: Helvetica;
    color: black;
    font-weight: bold;
}

.head > a:hover {
    font-size: 105%;
}

/*-------------------------------------------------------------*/ 

.body {
    width: 100%;
    height: 350px;
}

.body > h2 {
    text-align: center;
    padding-top: 20px;
    color: black;
    font-size: 25px;
}

.loader {
    width: 100%;
    border: 16px solid #f3f3f3; 
    border-top: 16px solid #3498db; 
    border-radius: 50%;
    width: 120px;
    height: 120px;
    animation: spin 2s linear infinite;

    margin-top: 30px;
  }
  
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }

.loader {
    margin-left: 45%;
}