*{margin: 0;padding: 0;}
.richbox{white-space:normal; word-break:break-all;overflow:hidden;width: 100%;}
.richbox:empty::before{content: attr(placeholder);}
.richbox:focus:before{content: none;}
.zyeactive{box-shadow: 0 0 5px #80a5eb;}

.rotate180 { transform: rotate(180deg);}
#zye_box,#zye_box *{box-sizing:border-box}
#zye_box{background:#222222;display: flex;flex-direction: column;min-height: 500px;position: relative;padding: 5px;}
#zye_header{display: flex;}

#zye_content_box{color: #f1f1f1;margin-top: 50px;}

#zye_btn_add{text-align: center;line-height: 50px;}
#zye_btn_add i{font-size: 40px;}
#zye_btn_add i:hover{cursor: pointer;color: #ffffff;}