body{
  margin: 0;
  font-family: 'Raleway', 'Lato', 'Helvetica Neue', 'Arial', sans-serif;
}

* {
  box-sizing: border-box;
}

.clearfix::after{
  content: "";
  display: block;
  clear: both;
}

#headline{

  padding: 1rem;
  text-align: center;
  background: linear-gradient(to right, #015989, #52BECF);
  color: #eff4f7 ;
  text-transform: uppercase;
  font-size: 3rem;
}

#container-content{
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  margin-top: 1rem;
}


.row::after {
  content: "";
  clear: both;
  display: block;
}

[class*="col-"] {
  float: left;
  min-height: 1px;
  padding: .3rem;
}

.col-1{
  margin: 0;
  width: 100%;
  text-align: center;
}

#container-content .row > .col-1:nth-last-of-type(odd) > .btn-link{
  margin-right: auto;
  margin-left: .2rem;
}

#container-content .row > .col-1:nth-last-of-type(even) > .btn-link{
  margin-right: .2rem;
  margin-left: auto;
}


.btn-link{
  width: 250px;
  height: 250px;
  background-color: #DDD;
  border-radius: 10px;
  border-style: solid;
  border-color: #333;
  border-width: 4px;
  box-shadow: 2px 2px 5px #666;


}
.img-link{
  height: 100%;
  padding: 10px;
}