h1{
  color: #143f3e;
}

h2,
h3,
h4,
h5,
h6 {
  color: black;
}

.button {
  color: black;
}
pre {
  background-color: ffffff !important;
  color: black !important;
  border: 2px solid black;
  border-radius: 10px;
}

.sidebar{
    background-color: transparent;
    color: black;
}
.card{
    background-color: transparent;
    color: black;
    border: 1px solid black;
}
.card-header{
    background-color: transparent;
    color: black;
}
.navigation-bar a{
  color: rgb(45, 45, 236);
}