index.css

html {
  font-family: "Lucida Sans", sans-serif;
}
.flex-box-container-1
{
  background-color: #112B3C;
  color: white;
  height: 5%;
  display: flex;
  justify-content: center;
  align-items: center;
}


.flex-box-container-2
{

  padding: 10px;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
}

.flex-box-container-2-1
{
  width: 30%;
}
.flex-box-container-2-1 > div
{
  background-color: #33b5e5;
  margin-top: 2px;
  padding: 15px;
  color: #ffffff;
  text-align: center;
  font-size: 14px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
}
.flex-box-container-2-1 > div:hover
{
  background-color: #0099cc
}



.flex-box-container-2-2
{
  width:60%;
}

.flex-box-container-2-3
{
  background-color: #0099cc;
  color: #ffffff;
  text-align: center;
  font-size: 12px;
  padding: 15px;
  width: 100%;
  margin-top: 10px;
}

@media (max-width: 600px)
{
  .flex-box-container-2-1
  {

    width: 100%;

  }

  .flex-box-container-2-2
  {

    width:100%;
  }

  .flex-box-container-2-3
  {

    width: 100%;

  }
}


.flex-box-container-3
{
  display: flex;
  padding : 15px;
  font-size: 14px;
  background-color: #0099cc;
  justify-content: center;
}