给出一个包含10个字符串元素的列表，将列表元素中的所有大写字母转换为小写，并删除包含空格的元素。


["Hi there","how are You","doing Today"," ","Fine","You?"," ","Great!"," ",""]
["hi there", "how are you", "doing today", "fine", "you?", "great!", ""]