.moment_item { display: flex; flex-direction: row; padding-bottom: 30px; padding-top: 30px; padding-left: 40px; padding-right: 40px; position: relative; } .moment_avatar { width: 74px; height: 74px; border-radius: 37px; margin-right: 24px; flex-shrink: 0; } .moment_detail{ flex: 1; display: flex; flex-direction: column; } .item_share_bg{ width: 44px; height: 44px; display: flex; position: relative; align-items: center; justify-content: center; } .item_share{ position: absolute; left: 0; right: 0; top: 0; bottom: 0; opacity: 0; }