이렇게 수정해보니 되는것 같습니다.

확인한번 부탁드립니다.

/* Planner123 - (calendar) */
.planner_calendar {clear:both; width:100%; border-collapse:collapse; table-layout:fixed; border-bottom:1px solid #ccc;}
.planner_calendar thead th {padding:0 5px; border-spacing:0; height:36px; text-align:left; border:1px solid #ccc; border-top:1px solid #ccc; border-left:1px solid #ccc; border-right:1px solid #ccc; background: #f5f7f9; font-weight:normal;}
.planner_calendar tbody tr {text-align:left;}
.planner_calendar td {padding:0; border-spacing:0; border:1px solid #ccc; border-left:1px solid #ccc; border-right:1px solid #ccc; height:126px; vertical-align:top;}
.planner_calendar_inner {margin:0; padding:5px 0 0 5px; width:100%; min-height:80px; display:block; border-top:1px solid #ccc;}
.planner_calendar_inner ul {vertical-align:top; text-align:left; border:none;}
.planner_calendar_inner .drag {float:none; margin: 0 0 5px 0;}
.planner_calendar li {height:auto; padding:0; list-style-type:none;}
.planner_calendar .holiday {color:#ff0000;}
.planner_calendar .offday {background-color:#f5f5f5;}
.planner_calendar .saturday {}
.planner_calendar .weekday {color:#303030;}
.planner_calendar .lunar {color:#b03060; padding:0 5px;}
.planner_calendar .islamic {color:#0000cd;}
.planner_calendar .seasons24 {color:#0000ff;}
.planner_calendar .memorial {color:#008b8b; padding-top:1px;}
.planner_calendar .small {font-size:0.9em;}
.planner_calendar .font_big {font-size:15px;}
.planner_calendar tbody .today_bg {background:#feebee;}
.planner_calendar .droppable-hover {background:#f6f6f6;}
.planner_calendar .inside {overflow:hidden; vertical-align:top; float:left;}
.planner_calendar .inside_end {overflow:hidden; vertical-align:top; float:left;}
.planner_calendar tr td.hover {background-color:#f6f6f6;}
.planner_calendar .date_div {padding-left:2px;}
/* ..planner_calendar .link_allow {display:block; overflow:hidden;}
.planner_calendar .link_allow:hover {background-color:#52FBF9; opacity:1; filter:alpha(opacity=100); } */
.planner_calendar .holiday_topline {display:none;}
.planner_calendar .holiday_bottomline {display:inline;}
.planner_calendar .memday_topline {display:none;}
.planner_calendar .memday_bottomline {display:inline;}
/* .planner_calendar .schedule_bottom {border-bottom:1px solid #ffffff;} */