Although the above pop-up code has completed the effect of creating pop-up windows using single mode, the code is not universal. For example, the above is the code for completing pop-up windows. What if we need an iframe on the page in the future? Do we need to rewrite a set of code to create iframe? For example, create an iframe as follows:
她就低头吃饭，不时地又抬头看他一眼。
《地球脉动》创剧人倾情打造的《我们的星球》采用令人惊艳的摄影和技术，采用前所未有的摄影方式探索了地球上尚存的野生区域和那里的动物。
< div id= "showcount" >
