分屏的关闭事件，相关样式调整

shuishen

2021-06-04 a239631f7bbd0c17037c31d3fcb04504ab317c51

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//>>built
define({deleteButton:"[\u0394\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae]"});