Don’t forget to take a backup of the file prior to any change. We won’t be able to help in case of data loss.
Please make sure that the size is set at 100% to do so please proceed as follows:
Take a backup of the file prior to any change.
Please open your style sheet wp-content ->themes ->Tyler ->css -> layout.css. via the cpanel or FTP.
Here add the following style at the end of the page.
.landing .bg {
background-size:100% auto;
}
Then update the file.