.megbox{position: absolute;background-color: #FFF;border: 1px solid #a4acb5;padding: 5px 10px;border-radius: 4px;z-index: 999;}
.megbox_top{width: 13px;height: 7px;position: absolute;background: url(../imgs/up.png) no-repeat;top: -7px;}
.megbox_meg{height: 40px;width: auto;padding-left: 25px;background: url(../imgs/warning.jpg) no-repeat;line-height: 40px;overflow: hidden;background-position-y: center;}
.megbox_long_meg{height: 40px;width: auto;padding-left: 25px;background: url(../imgs/warning.jpg) no-repeat;line-height: 40px;overflow: hidden;background-position-y: center;}
.megbox_txt{}