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Edit File: contextmenu.css

/* menu and submenu */
.elfinder .elfinder-contextmenu,
.elfinder .elfinder-contextmenu-sub {
    position: absolute;
    border: 1px solid #aaa;
    background: #fff;
    color: #555;
    padding: 4px 0;
    top: 0;
    left: 0;
    z-index: 9999 !important;
}

/* submenu */
.elfinder .elfinder-contextmenu-sub {
    top: 5px;
}

/* submenu in rtl/ltr enviroment */
.elfinder .elfinder-contextmenu-ltr .elfinder-contextmenu-sub {
    margin-left: -5px;
}

.elfinder .elfinder-contextmenu-rtl .elfinder-contextmenu-sub {
    margin-right: -5px;
}

/* menu item */
.elfinder .elfinder-contextmenu-header {
    margin-top: -4px;
    padding: 0 .5em .2ex;
    border: none;
    text-align: center;
}

.elfinder .elfinder-contextmenu-header span {
    font-weight: normal;
    font-size: 0.8em;
    font-weight: bolder;
}

.elfinder .elfinder-contextmenu-item {
    position: relative;
    display: block;
    padding: 4px 30px;
    text-decoration: none;
    white-space: nowrap;
    cursor: default;
}

.elfinder .elfinder-contextmenu-item.ui-state-active {
    border: none;
}

.elfinder .elfinder-contextmenu-item .ui-icon {
    width: 16px;
    height: 16px;
    position: absolute;
    left: auto;
    right: auto;
    top: 50%;
    margin-top: -8px;
}

.elfinder .elfinder-contextmenu-ltr .elfinder-contextmenu-item .ui-icon {
    left: 2px;
}

.elfinder .elfinder-contextmenu-rtl .elfinder-contextmenu-item .ui-icon {
    right: 0px;
}

.elfinder-touch .elfinder-contextmenu-item {
    padding: 12px 38px;
}

/* root icon of each volume */
.elfinder-navbar-root-local.elfinder-contextmenu-icon {
    background-image: url("../img/volume_icon_local.svg");
    background-size: contain;
}

.elfinder-navbar-root-trash.elfinder-contextmenu-icon {
    background-image: url("../img/volume_icon_trash.svg");
    background-size: contain;
}

.elfinder-navbar-root-ftp.elfinder-contextmenu-icon {
    background-image: url("../img/volume_icon_ftp.svg");
    background-size: contain;
}

.elfinder-navbar-root-sql.elfinder-contextmenu-icon {
    background-image: url("../img/volume_icon_sql.svg");
    background-size: contain;
}

.elfinder-navbar-root-dropbox.elfinder-contextmenu-icon {
    background-image: url("../img/volume_icon_dropbox.svg");
    background-size: contain;
}

.elfinder-navbar-root-googledrive.elfinder-contextmenu-icon {
    background-image: url("../img/volume_icon_googledrive.svg");
    background-size: contain;
}

.elfinder-navbar-root-onedrive.elfinder-contextmenu-icon {
    background-image: url("../img/volume_icon_onedrive.svg");
    background-size: contain;
}

.elfinder-navbar-root-box.elfinder-contextmenu-icon {
    background-image: url("../img/volume_icon_box.svg");
    background-size: contain;
}

.elfinder-navbar-root-zip.elfinder-contextmenu-icon {
    background-image: url("../img/volume_icon_zip.svg");
    background-size: contain;
}

.elfinder-navbar-root-network.elfinder-contextmenu-icon {
    background-image: url("../img/volume_icon_network.svg");
    background-size: contain;
}

/* text in item */
.elfinder .elfinder-contextmenu .elfinder-contextmenu-item span {
    display: block;
}

/* submenu item in rtl/ltr enviroment */
.elfinder .elfinder-contextmenu-sub .elfinder-contextmenu-item {
    padding-left: 12px;
    padding-right: 12px;
}

.elfinder .elfinder-contextmenu-ltr .elfinder-contextmenu-item {
    text-align: left;
}

.elfinder .elfinder-contextmenu-rtl .elfinder-contextmenu-item {
    text-align: right;
}

.elfinder .elfinder-contextmenu-ltr .elfinder-contextmenu-sub .elfinder-contextsubmenu-item-icon {
    padding-left: 28px;
}

.elfinder .elfinder-contextmenu-rtl .elfinder-contextmenu-sub .elfinder-contextsubmenu-item-icon {
    padding-right: 28px;
}

.elfinder-touch .elfinder-contextmenu-ltr .elfinder-contextmenu-sub .elfinder-contextsubmenu-item-icon {
    padding-left: 36px;
}

.elfinder-touch .elfinder-contextmenu-rtl .elfinder-contextmenu-sub .elfinder-contextsubmenu-item-icon {
    padding-right: 36px;
}

/* command/submenu icon */
.elfinder .elfinder-contextmenu-extra-icon,
.elfinder .elfinder-contextmenu-arrow,
.elfinder .elfinder-contextmenu-icon {
    position: absolute;
    top: 50%;
    margin-top: -8px;
    overflow: hidden;
}

.elfinder-touch .elfinder-button-icon.elfinder-contextmenu-icon {
    transform-origin: center center;
}

/* command icon in rtl/ltr enviroment */
.elfinder .elfinder-contextmenu-ltr .elfinder-contextmenu-icon {
    left: 8px;
}

.elfinder .elfinder-contextmenu-rtl .elfinder-contextmenu-icon {
    right: 8px;
}

.elfinder .elfinder-contextmenu-ltr .elfinder-contextmenu-extra-icon {
    right: 8px;
}

.elfinder .elfinder-contextmenu-rtl .elfinder-contextmenu-extra-icon {
    left: 8px;
}

/* arrow icon */
.elfinder .elfinder-contextmenu-arrow {
    width: 16px;
    height: 16px;
    background: url('../img/arrows-normal.png') 5px 4px no-repeat;
}

/* arrow icon in rtl/ltr enviroment */
.elfinder .elfinder-contextmenu-ltr .elfinder-contextmenu-arrow {
    right: 5px;
}

.elfinder .elfinder-contextmenu-rtl .elfinder-contextmenu-arrow {
    left: 5px;
    background-position: 0 -10px;
}

/* command extra icon's <a>, <span> tag */
.elfinder .elfinder-contextmenu-extra-icon a,
.elfinder .elfinder-contextmenu-extra-icon span {
    position: relative;
    width: 100%;
    height: 100%;
    margin: 0;
    color: transparent !important;
    text-decoration: none;
    cursor: pointer;
}

/* disable ui border/bg image on hover */
.elfinder .elfinder-contextmenu .ui-state-hover {
    border: 0 solid;
    background-image: none;
}

/* separator */
.elfinder .elfinder-contextmenu-separator {
    height: 0px;
    border-top: 1px solid #ccc;
    margin: 0 1px;
}

/* for CSS style priority to ui-state-disabled - "background-image: none" */
.elfinder .elfinder-contextmenu-item .elfinder-button-icon.ui-state-disabled {
    background-image: url('../img/toolbar.png');
}

.elfinder .elfinder-contextmenu-ltr .elfinder-contextmenu-extra-icon{ display:none !important; }