body{
    text-align: center;
    background-color: lightblue;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', 'Geneva', Verdana, sans-serif;
}

#operacoesA {
    color: red;
    font-size: 0.8rem;
}

h1 {
     
    position: relative;
    width: 100%;
    z-index: 1;
    font-size: 1.5rem;
    }
    
a {
    color: white;
    }
    a:hover{
    color: purple;
    }