#voltar {
    padding: 10px 30px;
    border: 5px solid greenyellow;
    position: absolute;
    right: 30px;
    top: 20px;
    background-color: white;
    color: black;
}
#tema{
    position: absolute;
    right: 160px;
    top: 20px;
    height: 45px;
    width: 110px;
    background-color: white;
    border: 5px solid greenyellow;
}
#tituloprincipal{
    font-size: 48px;
    top: 30px;
    position: relative;
    text-align: center;
    text-decoration: underline;
    text-decoration-color: greenyellow;
    text-decoration-thickness: 8px;
}
.botoesmenu {
    position: relative;
    width: 540px;
    height: 540px;
    font-size: 50px;
    border: 5px solid greenyellow;
    background-color: white;
    font-family:'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;  
    margin-top: 20px;
    margin-right: 20px;
    left: 120px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
button {
    transition: 0.3s;
    cursor: pointer;
}
.botoesmenu:hover{
    transform: scale(1.05);
    border: 5px solid rgb(255, 94, 0);
}
#voltar:hover{
    transform: scale(1.1);
}
#tema:hover{
    transform: scale(1.1);
}
.botoesmenu.tema-escuro:hover {
    color: rgb(20, 20, 20);
    border: 5px solid rgb(255, 94, 0);
    transform: scale(1.05);
}