.popover {
     border: 1px;
     margin: 0;
     width: 600px;
     max-width: 600px;
     margin: 30px auto;
     border-radius: 6px;
}
 .popover .popover-content {
     word-break: normal;
     padding: 15px;
     box-sizing: border-box;
     background-color: #ffffff;
     background-clip: padding-box;
     line-height: 1.42857143;
}
 .popover-title {
     padding: 8px 14px;
     margin: 0;
     font-size: 14px;
     background-color: #ffffff;
     border-bottom: 1px solid #e5e5e5;
 }
 .popover-header{
     font-weight: bold;
     background-color: #ffffff;
     border-bottom: 1px solid #e5e5e5;
     margin: 0;
 }
 .popover-content {
          padding: 8px 14px;
          margin-bottom: 10px;
          border-bottom: 1px solid #e5e5e5;
 }
 .popover-btn {
     margin: 25px 0px 10px;
 }