.bc-codepen{
width: 100%;
overflow: hidden;
}
.bc-codepen[bc-codepen--to-hide]{
opacity: 0;
}
.bc-codepen__pen{
height: 600px;
width: 100%;
display: flex; 
align-items: center; 
justify-content: center; 
border: 20px solid; 
margin: 1em 0; 
padding: 1em;
}