body {
  /*background-color:  #DAF7A6 ;*/
  background-image: url(../images/brick-wall.jpg);
}

a {
  float: right;
}

#app-container {
  display: flex;
  justify-content: center;
  /*padding-top: 50px;*/
  border: 2px solid black;
}

.flex-container {
  flex-grow: 1;
}

.flex-item {
  color: white;
  background-color: white;
  /*border: 1px solid black;*/
  /*font-size: 25px;*/
}

.welcome {
  padding-top: 25px;
  padding-bottom: 25px;
  color: white;


}

.black {
  background-color: black;
  color: black;
}

.red {
  background-color: red;
  color: red;
}

.green {
  background-color: green;
  color: green;
}

.yellow {
  background-color: yellow;
  color: yellow;
}