fixed suggested by third party.

same as above, ```_webView``` --> ```self.webView```, so this needs to be:

```[self.webView loadHTMLString:@"<html><head><style>h1{text-align:center;font-family:'Helvetica Neue';font-size:40px;}.outer {display: table; position: absolute;height: 100%;width: 100%;}.middle {display: table-cell;vertical-align: middle;}.inner {margin-left: auto;margin-right: auto;width:80%;}</style><body><div class='outer'><div class='middle'><div class='inner'><h1>Loading Edmodo Login...</h1></div></div></div></body></html>" baseURL:nil];```

(alternatively could store that long string in a var?)