Red Sleeves Reading is a web novel reading app. You can set the horizontal screen by following the steps below: 1. Open the Red Sleeves Reading app and enter the novel reading page. 2. Enter the settings page by clicking on the three dots on the top right corner of the page. 3 Choose the "System Setting" option on the settings page. 4. Choose the " layout " option on the system settings page. 5 On the layout page, select the " landscape display " option and click the " OK " button. In this way, he could set the Red Sleeves Reading app to display the landscape mode when reading a novel. It should be noted that the horizontal display will occupy most of the screen space, which may affect the reading experience. Therefore, it is recommended to adjust the screen size according to the needs to better read the novel.