h1{
  color: yellow;
  font-size: 32px;
  background-color: #808080
}


h2{
  color: yellow;
  font-size: 26px;
}

.container-header {
  z-index: 10;
    background-color: darkgray;
    background-image: none;
    position: relative;
    box-shadow: inset 0 5px 5px #00000008;
}

body {
  background-color: darkgray;
}
  

.myklass {
  background-color: darkgray;
  border-color: darkgray;
}
.myklass .card-body {
  background-color: darkgray;
  border-color: darkgray
}

.main-top.card {
  background-color: darkgray;
  border-color: darkgray;
}

.footer {
  background-color: darkgray;
  background-image: none; 
}