.vcenter{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}
.v-middle{display:inline-block;vertical-align:middle;float:none;}
.w-30per{width:25%;}
.panel-heading{font-size:18px;font-weight:bold}
.btn{font-weight:bold}
.margin-top-5per{margin-top:5%}
.border-3-success{border:3px solid #3C763D}
.border-3-error{border:3px solid #A94442}
.border-3-info{border:3px solid #31708F}
.middle{vertical-align:bottom}
.height-100per{top:50%;}
.message-icon{font-size:3em;}

/*** CUSTOM SUBMENU  **/
.dropdown-submenu:hover > .dropdown-menu .dropdown-menu { display: none; }
.dropdown-submenu:hover .dropdown-submenu:hover > .dropdown-menu { display: block; }