diff --git a/assets/css/backend.css b/assets/css/backend.css
index 835da9ec..dbb3eb53 100644
--- a/assets/css/backend.css
+++ b/assets/css/backend.css
@@ -69,24 +69,6 @@ root {
     background: #2e6a5b;
 }
 
-/*#header #header-menu .nav-item::after {*/
-/*    content: '';*/
-/*    position: absolute;*/
-/*    width: 0;*/
-/*    height: 3px;*/
-/*    display: block;*/
-/*    right: 0;*/
-/*    background: white;*/
-/*    transition: width .2s ease;*/
-/*}*/
-
-/*#header #header-menu .nav-item:hover:not(.active)::after,*/
-/*#header #header-menu .active::after {*/
-/*    width: 90%;*/
-/*    left: 5px;*/
-/*    background: white;*/
-/*}*/
-
 #footer {
     background-color: #F7F7F7;
     border-top: 1px solid #DDD;
@@ -893,87 +875,3 @@ body .form-horizontal .controls {
 #settings-page #update-ea {
     margin-left: 12px;
 }
-
-/*@media (max-width: 1200px) {*/
-/*    #header #header-menu .menu-item {*/
-/*        min-width: 100px;*/
-/*    }*/
-/*}*/
-
-/*@media (max-width: 1000px) {*/
-/*    #header #header-menu .nav-item:hover:not(.active)::after,*/
-/*    #header #header-menu .active::after {*/
-/*        width: 100%;*/
-/*        left: 0;*/
-/*        background: white;*/
-/*        position: relative;*/
-/*    }*/
-/*}*/
-
-/*@media (max-width: 860px) {*/
-/*    #header #header-menu .menu-item {*/
-/*        min-width: 85px;*/
-/*    }*/
-
-/*    #footer #footer-user-display-name {*/
-/*        text-align: left;*/
-/*    }*/
-
-/*    #calendar-page #calendar-filter label {*/
-/*        margin-bottom: 5px;*/
-/*    }*/
-
-/*    #calendar-page .calendar-filter-items {*/
-/*        display: block;*/
-/*        width: 100%;*/
-/*    }*/
-/*}*/
-
-/*@media (max-width: 768px) {*/
-/*    #calendar-page #calendar-actions {*/
-/*        text-align: left;*/
-/*    }*/
-/*}*/
-
-/*@media (max-width: 468px) {*/
-/*    #calendar-page #calendar .fc-toolbar.fc-header-toolbar .fc-center {*/
-/*        margin-top: 1rem;*/
-/*    }*/
-
-/*    #calendar-page .fc-header td {*/
-/*        display: block;*/
-/*        width: 70vw;*/
-/*        float: left;*/
-/*        margin: 10px auto;*/
-/*        text-align: left;*/
-/*    }*/
-
-/*    #calendar-page #calendar-actions .btn {*/
-/*        width: 100%;*/
-/*        margin: 5px 0;*/
-/*    }*/
-
-/*    .ui-dialog {*/
-/*        margin: 0 12px;*/
-/*    }*/
-
-/*    #calendar-page #calendar-filter select {*/
-/*        min-width: auto;*/
-/*    }*/
-
-/*    #users-page #providers .switch-view {*/
-/*        margin: 20px 0;*/
-/*        width: 100%;*/
-/*    }*/
-
-/*    #users-page #providers .switch-view strong {*/
-/*        display: block;*/
-/*        width: 100%;*/
-/*        text-align: center;*/
-/*        margin: 16px 0;*/
-/*    }*/
-
-/*    #users-page #providers .switch-view div {*/
-/*        width: 48%;*/
-/*    }*/
-/*}*/