分屏的关闭事件，相关样式调整

shuishen

2021-06-04 a239631f7bbd0c17037c31d3fcb04504ab317c51

1
.mblDomButtonBlackUpArrow16 {background-image: url(compat/mblDomButtonBlackUpArrow16.png); background-repeat: no-repeat;}.mblDomButtonBlackUpArrow16 > div {display: none;}