Build Page in Lightning missing "Page Include" under advanced.

Questions
9

Could you should a video showing how you did this. Here is how mine looks.

Here is my CSS:
.sk-wrapper {position: relative;
border-width: 10px 2px 2px 2px;
border-style: solid;
border-color: #FF6600 #FF6600 #FF6600 #FF6600;
box-sizing: border-box;
background-color: #ffffff;
border-radius: 10px 10px 10px 10px;
margin: 0px 10px 10px 0px;
Padding: 0px 10px 10px 10px;
box-sizing: border-box;
overflow-y: auto;
position: relative;
display: table;
max-width: 800px;
min-width: 500px;
}