body .switch-language-btn{position:fixed;bottom:20px;right:20px;z-index:1000;background-color:#007bff;color:white;padding:10px 20px;border-radius:5px;cursor:pointer;box-shadow:0 4px 6px rgba(0,0,0,.1)}body .switch-language-btn:hover{background-color:#0056b3}.chinese-heading{font-size:3rem}.chinese-target{font-size:1.6rem}.english-heading{font-size:4.3rem}.english-target{font-size:2rem}