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Edit File: navbar.css

/*********************************************/
/*              NAVIGATION PANEL             */
/*********************************************/

/* container */
.elfinder .elfinder-navbar {
    width: 230px;
    padding: 3px 5px;
    background-image: none;
    border-top: 0 solid;
    border-bottom: 0 solid;
    overflow: auto;
    position: relative;
}

.elfinder .elfinder-navdock {
    box-sizing: border-box;
    width: 230px;
    height: auto;
    position: absolute;
    bottom: 0;
    overflow: auto;
}

.elfinder-navdock .ui-resizable-n {
    top: 0;
    height: 20px;
}

/* ltr/rtl enviroment */
.elfinder-ltr .elfinder-navbar {
    float: left;
    border-left: 0 solid;
}

.elfinder-rtl .elfinder-navbar {
    float: right;
    border-right: 0 solid;
}

.elfinder-ltr .ui-resizable-e {
    margin-left: 10px;
}

/* folders tree container */
.elfinder-tree {
    display: table;
    width: 100%;
    margin: 0 0 .5em 0;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

/* folder */
.elfinder-navbar-dir {
    position: relative;
    display: block;
    white-space: nowrap;
    padding: 3px 12px;
    margin: 0;
    outline: 0px solid;
    border: 1px solid transparent;
    cursor: default;
}

.elfinder-touch .elfinder-navbar-dir {
    padding: 12px 12px;
}

/* ltr/rtl enviroment */
.elfinder-ltr .elfinder-navbar-dir {
    padding-left: 35px;
}

.elfinder-rtl .elfinder-navbar-dir {
    padding-right: 35px;
}

/* arrow before icon */
.elfinder-navbar-arrow {
    width: 12px;
    height: 14px;
    position: absolute;
    display: none;
    top: 50%;
    margin-top: -8px;
    background-image: url("../img/arrows-normal.png");
    background-repeat: no-repeat;
}

.elfinder-ltr .elfinder-navbar-arrow {
    left: 0;
}

.elfinder-rtl .elfinder-navbar-arrow {
    right: 0;
}

.elfinder-touch .elfinder-navbar-arrow {
    -moz-transform-origin: top left;
    -moz-transform: scale(1.4);
    zoom: 1.4;
    margin-bottom: 7px;
}

.elfinder-ltr.elfinder-touch .elfinder-navbar-arrow {
    left: -3px;
    margin-right: 20px;
}

.elfinder-rtl.elfinder-touch .elfinder-navbar-arrow {
    right: -3px;
    margin-left: 20px;
}

.ui-state-active .elfinder-navbar-arrow {
    background-image: url("../img/arrows-active.png");
}

/* collapsed/expanded arrow view */
.elfinder-navbar-collapsed .elfinder-navbar-arrow {
    display: block;
}

.elfinder-subtree-chksubdir .elfinder-navbar-arrow {
    opacity: .25;
    filter: Alpha(Opacity=25);
}

/* arrow ltr/rtl enviroment */
.elfinder-ltr .elfinder-navbar-collapsed .elfinder-navbar-arrow {
    background-position: 0 4px;
}

.elfinder-rtl .elfinder-navbar-collapsed .elfinder-navbar-arrow {
    background-position: 0 -10px;
}

.elfinder-ltr .elfinder-navbar-expanded .elfinder-navbar-arrow,
.elfinder-rtl .elfinder-navbar-expanded .elfinder-navbar-arrow {
    background-position: 0 -21px;
}

/* folder icon */
.elfinder-navbar-icon {
    width: 16px;
    height: 16px;
    position: absolute;
    top: 50%;
    margin-top: -8px;
    background-image: url("../img/toolbar.png");
    background-repeat: no-repeat;
    background-position: 0 -16px;
}

/* ltr/rtl enviroment */
.elfinder-ltr .elfinder-navbar-icon {
    left: 14px;
}

.elfinder-rtl .elfinder-navbar-icon {
    right: 14px;
}

/* places icon */
.elfinder-places .elfinder-navbar-root .elfinder-navbar-icon {
    background-position: 0 -704px;
}

/* root folder */
.elfinder-tree .elfinder-navbar-root-local .elfinder-navbar-icon,
.elfinder-tree .elfinder-navbar-root-trash .elfinder-navbar-icon,
.elfinder-tree .elfinder-navbar-root-ftp .elfinder-navbar-icon,
.elfinder-tree .elfinder-navbar-root-sql .elfinder-navbar-icon,
.elfinder-tree .elfinder-navbar-root-dropbox .elfinder-navbar-icon,
.elfinder-tree .elfinder-navbar-root-googledrive .elfinder-navbar-icon,
.elfinder-tree .elfinder-navbar-root-onedrive .elfinder-navbar-icon,
.elfinder-tree .elfinder-navbar-root-box .elfinder-navbar-icon,
.elfinder-tree .elfinder-navbar-root-zip .elfinder-navbar-icon,
.elfinder-tree .elfinder-navbar-root-network .elfinder-navbar-icon {
    background-position: 0 0;
    background-size: contain;
}

/* root icon of each volume "\9" for IE8 trick */
.elfinder-tree .elfinder-navbar-root-local .elfinder-navbar-icon {
    background-image: url("../img/volume_icon_local.svg");
    background-image: url("../img/volume_icon_local.png") \9;
}

.elfinder-tree .elfinder-navbar-root-trash .elfinder-navbar-icon {
    background-image: url("../img/volume_icon_trash.svg");
    background-image: url("../img/volume_icon_trash.png") \9;
}

.elfinder-tree .elfinder-navbar-root-ftp .elfinder-navbar-icon {
    background-image: url("../img/volume_icon_ftp.svg");
    background-image: url("../img/volume_icon_ftp.png") \9;
}

.elfinder-tree .elfinder-navbar-root-sql .elfinder-navbar-icon {
    background-image: url("../img/volume_icon_sql.svg");
    background-image: url("../img/volume_icon_sql.png") \9;
}

.elfinder-tree .elfinder-navbar-root-dropbox .elfinder-navbar-icon {
    background-image: url("../img/volume_icon_dropbox.svg");
    background-image: url("../img/volume_icon_dropbox.png") \9;
}

.elfinder-tree .elfinder-navbar-root-googledrive .elfinder-navbar-icon {
    background-image: url("../img/volume_icon_googledrive.svg");
    background-image: url("../img/volume_icon_googledrive.png") \9;
}

.elfinder-tree .elfinder-navbar-root-onedrive .elfinder-navbar-icon {
    background-image: url("../img/volume_icon_onedrive.svg");
    background-image: url("../img/volume_icon_onedrive.png") \9;
}

.elfinder-tree .elfinder-navbar-root-box .elfinder-navbar-icon {
    background-image: url("../img/volume_icon_box.svg");
    background-image: url("../img/volume_icon_box.png") \9;
}

.elfinder-tree .elfinder-navbar-root-zip .elfinder-navbar-icon {
    background-image: url("../img/volume_icon_zip.svg");
    background-image: url("../img/volume_icon_zip.png") \9;
}

.elfinder-tree .elfinder-navbar-root-network .elfinder-navbar-icon {
    background-image: url("../img/volume_icon_network.svg");
    background-image: url("../img/volume_icon_network.png") \9;
}

/* icon in active/hove/dropactive state */
.ui-state-active .elfinder-navbar-icon,
.elfinder-droppable-active .elfinder-navbar-icon,
.ui-state-hover .elfinder-navbar-icon {
    background-position: 0 -32px;
}

/* ltr/rtl enviroment */
.elfinder-ltr .elfinder-navbar-subtree {
    margin-left: 12px;
}

.elfinder-rtl .elfinder-navbar-subtree {
    margin-right: 12px;
}

/* spinner */
.elfinder-tree .elfinder-spinner {
    position: absolute;
    top: 50%;
    margin: -7px 0 0;
}

/* spinner ltr/rtl enviroment */
.elfinder-ltr .elfinder-tree .elfinder-spinner {
    left: 0;
    margin-left: -2px;
}

.elfinder-rtl .elfinder-tree .elfinder-spinner {
    right: 0;
    margin-right: -2px;
}

/* marker */
.elfinder-navbar .elfinder-perms,
.elfinder-navbar .elfinder-lock,
.elfinder-navbar .elfinder-symlink {
    opacity: .6;
    filter: Alpha(Opacity=60);
}

/* permissions marker */
.elfinder-navbar .elfinder-perms {
    bottom: -1px;
    margin-top: -8px;
}

/* locked marker */
.elfinder-navbar .elfinder-lock {
    top: -2px;
}

/* permissions/symlink markers ltr/rtl enviroment */
.elfinder-ltr .elfinder-navbar .elfinder-perms {
    left: 20px;
    transform: scale(0.8);
}

.elfinder-rtl .elfinder-navbar .elfinder-perms {
    right: 20px;
    transform: scale(0.8);
}

.elfinder-ltr .elfinder-navbar .elfinder-lock {
    left: 20px;
    transform: scale(0.8);
}

.elfinder-rtl .elfinder-navbar .elfinder-lock {
    right: 20px;
    transform: scale(0.8);
}

.elfinder-ltr .elfinder-navbar .elfinder-symlink {
    left: 8px;
    transform: scale(0.8);
}

.elfinder-rtl .elfinder-navbar .elfinder-symlink {
    right: 8px;
    transform: scale(0.8);
}

/* navbar input */
.elfinder-navbar input {
    width: 100%;
    border: 0px solid;
    margin: 0;
    padding: 0;
}

/* resizable */
.elfinder-navbar .ui-resizable-handle {
    width: 12px;
    background: transparent url('../img/resize.png') center center no-repeat;
}

.elfinder-nav-handle-icon {
    position: absolute;
    top: 50%;
    margin: -8px 2px 0 2px;
    opacity: .5;
    filter: Alpha(Opacity=50);
}

/* pager button */
.elfinder-navbar-pager {
    width: 100%;
    box-sizing: border-box;
    padding-top: 3px;
    padding-bottom: 3px;
}

.elfinder-touch .elfinder-navbar-pager {
    padding-top: 10px;
    padding-bottom: 10px;
}

.elfinder-places {
    border: none;
    margin: 0;
    padding: 0;
}

/* navbar swipe handle */
.elfinder-navbar-swipe-handle {
    position: absolute;
    top: 0px;
    height: 100%;
    width: 50px;
    pointer-events: none;
}

.elfinder-ltr .elfinder-navbar-swipe-handle {
    left: 0px;
    background: linear-gradient(to right,
    rgba(221, 228, 235, 1) 0,
    rgba(221, 228, 235, 0.8) 5px,
    rgba(216, 223, 230, 0.3) 8px,
    rgba(0, 0, 0, 0.1) 95%,
    rgba(0, 0, 0, 0) 100%);
}

.elfinder-rtl .elfinder-navbar-swipe-handle {
    right: 0px;
    background: linear-gradient(to left,
    rgba(221, 228, 235, 1) 0,
    rgba(221, 228, 235, 0.8) 5px,
    rgba(216, 223, 230, 0.3) 8px,
    rgba(0, 0, 0, 0.1) 95%,
    rgba(0, 0, 0, 0) 100%);
}