.col-auto {
    flex: 0 0 auto;
    width: auto;
}

.col-auto.item {
    flex: 0 0 auto;
    width: 40%;
}

::-webkit-scrollbar-track-piece {
    background-color: #eee;
}

/* width */
::-webkit-scrollbar {
    width: 10px;
}

/* Track */
::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 20px;
}

/* Handle */
::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 20px;
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.navbar {
    background-color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
    margin-bottom:0px!important;
    /* padding: 5px; */
}

.navbar-brand {
    display: inline-block;
    background-color: #fff;
    padding: 5px 10px !important;
    height: 50px !important;
    border-radius: 10px;
    margin: 5px;
}

.navbar-brand img {
    height: -webkit-fill-available;
}

.navbar-default .navbar-brand:focus, .navbar-default .navbar-brand:hover {
    background-color: white;
}

button,
input,
optgroup,
select,
textarea {
    margin: 0 !important;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

[class^="icon-"],
[class*=" icon-"] {
    font-family: 'icomoon' !important;
    font-style: normal;
    font-weight: normal;
    font-variant: normal;
    text-transform: none;
    line-height: 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.icon-check:before {
    content: '\2713';
    font-size: 2em;
}

aside[data-visible="false"] {
    display: none !important;
    flex-direction: none;
}

.progress {
    height: 8px !important;
    background-color: #dfdddd !important;
}

#prev, #next{
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 150px;
    display: inline-block;
}

#wrapper .footer {
    position: absolute;
    /* left: 0; */
    bottom: 0;
    width: 100%;
    /* padding-left: 400px; */
}

/* #wrapper.toggled .footer {
    padding-left: 0px;
} */

#wrapper.toggled .main_content {
    margin-left: 0px;
}

#wrapper .main_content {
    height: calc(100vh - 60px);
    margin-left: 400px;
    /* margin-top: 60px; */
    justify-content: center;
    align-items: center;
    display: flex;
    transition: 0.3s;
    position: relative;
    overflow: hidden;
}

.video-responsive {
    overflow: hidden;
    position: relative;
	display: block;
	height: calc(100% - 65px);
    /* height: 0;
    display: contents; */
    /* padding: 20px; */
}

.video-responsive iframe {
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    position: absolute;
    /* padding-top: 60px; */
    /* padding-bottom: 65px;*/
}

a.lesson_content:hover > * {
    color: var(--color-blue-3)!important;
}

.active_content {
    color: var(--color-blue-3)!important;
}

@media (max-width: 900px) {
    .main_content {
        height: 55vh !important;
    }
    .lesson-sidebar{
        padding-top: 60px!important;
    }
}

@media (max-width: 500px) {
    .form-checkbox {
        padding: 2px 5px !important;
    }

    .checkbox {
        margin-top: 5px !important;
        margin-bottom: 5px !important;
    }
}

#prev-button, #next-button{
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 150px;
    display: inline-block;
}

.viewer{
	width:100%;
	height:100%;
        background-color: var(--color-white);
}

#audio_player{
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
}