@media (min-width:1041px) and (max-width: 1268px) {
.admin { padding: 16px 0px 0px; }
.top_hedding { font-size: 28px; }
}
@media (min-width: 991px) and (max-width: 1040px) {
.top_hedding { font-size: 21px; padding-top: 24px; line-height: 30px; }
h1, h1 a, h1 a:hover { font-size: 1.6em; line-height: 42px; }
.admin { font-size: 14px; padding: 12px 0px 0px; }
.height_25 { height: auto; }
.height_15 { height: auto; }
.login_holder ul li {
    margin: 0px 0px 0px 0px;
    font-size: 14px;
    padding: 8px 0px 1px 0px;
    background-color: #fff;
}
}
@media (min-width: 868px) and (max-width: 990px) {
.top_hedding { font-size: 21px; padding-top: 24px; line-height: 30px; }
h1, h1 a, h1 a:hover { font-size: 1.6em; line-height: 42px; }
.admin { font-size: 14px; padding: 8px 0px 0px; }
h1, h1 a, h1 a:hover { font-size: 1.3em; line-height: 42px; }
.label_base label{
height:48px;
}
.edit_file img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}
.comments_icon a {
    color: #ff8200;
    font-size: 22px;
}
.comments_icon a:hover {
    color: #ff8200;
    font-size: 22px;
}
.comments_icon a:focus {
    color: #ff8200;
    font-size: 22px;
}
.border_like {
    border: solid 1px #ececec;
	padding: 12px 15px;
	margin: 0px auto;
	width: 94px;
}
.like_icon {
    font-size: 14px;
    font-style: italic;
    margin-top: 0px;
    float: none;
    width: auto;
    margin-bottom: 15px;
    display: block;
}
.login_holder ul li {
    margin: 0px 0px 0px 0px;
    font-size: 14px;
    padding: 8px 0px 1px 0px;
    background-color: #fff;
}
}
@media (min-width: 768px) and (max-width: 868px) {
.top_hedding { font-size: 21px; padding-top: 24px; line-height: 30px; }
h1, h1 a, h1 a:hover { font-size: 1.3em; line-height: 42px; }
.video_holder iframe { width: 100%; min-height: 270px; }
.admin { font-size: 14px; padding: 8px 0px 0px; }
.std_name { padding-top: 36px; }
h4, h4 a, h4 a:hover { font-size: .9em; line-height: normal; }
.height_25 { height: auto; }
.height_15 { height: auto; }
.label_base label{
height:47px;
}
.edit_file img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}
.comments_icon a {
    color: #ff8200;
    font-size: 22px;
}
.comments_icon a:hover {
    color: #ff8200;
    font-size: 22px;
}
.comments_icon a:focus {
    color: #ff8200;
    font-size: 22px;
}
.border_like {

    border: solid 1px #ececec;
    padding: 12px 20px;
    margin: 25px;
    width: 277px;

}
.border_like {
    border: solid 1px #ececec;
    padding: 12px 20px;
    margin: 0px auto;
    width: 95px;
}
.like_icon {
    font-size: 14px;
    font-style: italic;
    margin-top: 0px;
    float: none;
    width: auto;
    margin-bottom: 15px;
    display: block;
}
.login_holder ul li {
    margin: 0px 0px 0px 0px;
    font-size: 14px;
    padding: 8px 0px 1px 0px;
    background-color: #fff;
}
}
@media (min-width: 640px) and (max-width: 767px) {
.top_hedding { font-size: 19px; padding-top: 9px; line-height: 25px; }
h1, h1 a, h1 a:hover { font-size: 1.1em; line-height: 42px; }
.signin_link { text-align: center; }
.sign_text { text-align: center; }
.login_holder { padding: 18px; }
.login_form { padding: 35px 0px; }
.name_uni { padding: 18px 24px; line-height: normal; }
.video_holder iframe { width: 100%; min-height: 270px; }
.student_btn { margin-bottom:5px;  margin-top: 5px; display: inline-block; padding: 0px 0px 0px; margin-left: 0px; }
.name_uni { padding: 18px 0px; line-height: normal; }
.stu_his h4 { font-size: 18px; }
.admin { font-size: 15px; padding: 0px 0px 0px; }
h4, h4 a, h4 a:hover { font-size: .9em; line-height: normal; }
.height_25 { height: auto; }
.height_15 { height: auto; }
.label_base label{
height:40px;
font-size: 14px;
}
.edit_file img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}
.comments_icon a {
    color: #ff8200;
    font-size: 22px;
}
.comments_icon a:hover {
    color: #ff8200;
    font-size: 22px;
}
.comments_icon a:focus {
    color: #ff8200;
    font-size: 22px;
}
.border_like {

    border: solid 1px #ececec;
    padding: 12px 20px;
    margin: 25px;
    width: 277px;

}
.border_like {
    border: solid 1px #ececec;
    padding: 12px 20px;
    margin: 5px;
    width: auto;
}
.comments_icon {
    line-height: 18px;
    text-align: center;
}
.login_holder ul li {
    margin: 0px 0px 0px 0px;
    font-size: 16px;
    padding: 12px 0px 0px 0px;
    background-color: #fff;
}
}
 @media (min-width: 480px) and (max-width: 639px) {
.logo { text-align: center; }
.top_hedding { font-size: 19px; padding-top: 9px; line-height: 25px; text-align: center; }
h1, h1 a, h1 a:hover { font-size: 1.1em; line-height: 42px; }
.signin_link { text-align: center; }
.sign_text { text-align: center; }
.login_holder { padding: 18px; }
.login_form { padding: 35px 0px; }
.name_uni { padding: 18px 24px; line-height: normal; }
.video_holder iframe { width: 100%; min-height: 270px; }
.admin { text-align: center; padding: 0px; }
.signin_link { text-align: center; }
.sign_text { text-align: center; }
.login_holder { padding: 18px; }
.mail_icon { width: 35px; }
.pass_icon { width: 35px; }
.login_form { padding: 35px 0px; }
.name_uni { padding: 0px 0px; }
.student_btn { margin-top: 0px; display: inline-block; padding: 5px 0px 5px; margin-left: 0px; }
.std_name { padding-top: 0px; }
.student_sub { margin-top: 24px; display: block; }
.stu_his h4 { font-size: 18px; }
.admin { font-size: 15px; padding: 0px 0px 0px; }
h4, h4 a, h4 a:hover { font-size: .9em; line-height: normal; }
.best_result { padding: 15px; }
.stu_his { padding: 0px 0px 0px; }
.oreg_btn { margin-top: 0px; display: block; }
.back_btn { margin-top: 0px; display: block; }
.consept { margin-top: 15px; padding: 6px; }
.stu_his_base { padding: 10px 4px; }
.stu_edit { padding: 4px 5px 6px; line-height: 21px; text-align: left; }
.height_25 { height: auto; }
.height_15 { height: auto; }
.label_base label{
height: 40px;
font-size: 14px;
}
.edit_file img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}
.comments_icon a {
    color: #ff8200;
    font-size: 22px;
}
.comments_icon a:hover {
    color: #ff8200;
    font-size: 22px;
}
.comments_icon a:focus {
    color: #ff8200;
    font-size: 22px;
}
.border_like {

    border: solid 1px #ececec;
    padding: 12px 20px;
    margin: 25px auto;
    width: 277px;

}
.comments_icon {
    line-height: 18px;
    text-align: center;
}
.login_holder ul li {
    margin: 0px 0px 0px 0px;
    font-size: 16px;
    padding: 12px 0px 0px 0px;
    background-color: #fff;
}
}
 @media (min-width: 360px) and (max-width: 479px) {
.logo { text-align: center; max-width: 45%; margin: 0 auto; }
.top_hedding { font-size: 19px; padding-top: 9px; line-height: 25px; text-align: center; }
h1, h1 a, h1 a:hover { font-size: 1.1em; line-height: 42px; }
.signin_link { text-align: center; }
.sign_text { text-align: center; }
.login_holder { padding: 18px; }
.login_form { padding: 35px 0px; }
.name_uni { padding: 18px 24px; line-height: normal; }
.video_holder iframe { width: 100%; min-height: 270px; }
.signin_link { text-align: center; }
.sign_text { text-align: center; }
.login_holder { padding: 18px; }
.mail_icon { width: 35px; }
.pass_icon { width: 35px; }
.login_form { padding: 35px 0px; }
.price_inv { padding: 12px; }
.nav_base ul { padding: 0px; margin: 0px; list-style-type: none; }
.nav_base ul li { font-size: .9em; }
.nav_base ul li a { font-size: .9em; }
.nav_base ul li a:hover { font-size: .9em; }
.nav_base ul li a:focus { font-size: .9em; }
.nav-link { display: block; padding: .5rem .5rem;
}
.name_uni { padding: 5px 0px; }
.student_btn { margin-top: 0px; display: inline-block; padding: 6px 0px 10px; margin-left: 0px; }
.admin { text-align: center; padding: 0px; }
.stu_his h4 { font-size: 20px; }
.std_name { padding-top: 0px; }
.student_sub { margin-top: 14px; display: block; }
.best_result { padding: 15px; }
.stu_his { padding: 0px 0px 0px; }
.oreg_btn { margin-top: 0px; display: block; }
.back_btn { margin-top: 0px; display: block; }
.consept { margin-top: 15px; padding: 6px; }
.stu_his_base { padding: 10px 4px; }
.admin ul li a { font-size: 13px; }
.admin ul li a:hover { font-size: 13px; }
.admin ul li a:focus { font-size: 13px; }
.admin ul li a.active { font-size: 13px; }
.stu_edit { padding: 4px 5px 6px; line-height: 21px; text-align: left; }
.height_25 { height: auto; }
.height_15 { height: auto; }
.label_base label{
height: auto;
font-size:16px;
}
.edit_file img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}
.comments_icon a {
    color: #ff8200;
    font-size: 24px;
}
.comments_icon a:hover {
    color: #ff8200;
    font-size: 24px;
}
.comments_icon a:focus {
    color: #ff8200;
    font-size: 24px;
}
.border_like {
    border: solid 1px #ececec;
    padding: 12px 20px;
    margin: 25px 0px;
    width: 100%;
}
.comments_icon {
    line-height: 18px;
    text-align: center;
}
.login_holder ul li {
    margin: 0px 0px 0px 0px;
    font-size: 13px;
    padding: 10px 0px 3px 0px;
    background-color: #fff;
}
}
 @media (min-width:320px) and (max-width: 359px) {
.logo { text-align: center; max-width: 45%; margin: 0 auto; }
.top_hedding { font-size: 19px; padding-top: 9px; line-height: 25px; text-align: center; }
h1, h1 a, h1 a:hover { font-size: 1.1em; line-height: normal; padding-bottom: 15px; }
.signin_link { text-align: center; }
.sign_text { text-align: center; }
.login_holder { padding: 18px; }
.login_form { padding: 35px 0px; }
.name_uni { padding: 18px 24px; line-height: normal; }
.video_holder iframe { width: 100%; min-height: 270px; }
.signin_link { text-align: center; }
.sign_text { text-align: center; }
.login_holder { padding: 18px; }
.mail_icon { width: 35px; }
.pass_icon { width: 35px; }
.login_form { padding: 35px 0px; }
.price_inv { padding: 12px; }
.nav_base ul { padding: 0px; margin: 0px; list-style-type: none; }
.nav_base ul li { font-size: .9em; }
.nav_base ul li a { font-size: .9em; }
.nav_base ul li a:hover { font-size: .9em; }
.nav_base ul li a:focus { font-size: .9em; }
.nav-link { display: block; padding: .5rem .5rem;
}
.name_uni { padding: 5px 0px; }
.student_btn { margin-top: 0px; display: inline-block; padding: 6px 0px 10px; margin-left: 0px; }
.admin { text-align: center; padding: 0px; }
.stu_his h4 { font-size: 20px; }
.std_name { padding-top: 0px; }
.student_sub { margin-top: 14px; display: block; }
.best_result { padding: 15px; }
.stu_his { padding: 0px 0px 0px; }
.oreg_btn { margin-top: 0px; display: block; }
.back_btn { margin-top: 0px; display: block; }
.consept { margin-top: 15px; padding: 6px; }
.stu_his_base { padding: 10px 5px; }
.admin ul li a { font-size: 13px; }
.admin ul li a:hover { font-size: 13px; }
.admin ul li a:focus { font-size: 13px; }
.admin ul li a.active { font-size: 13px; }
.stu_edit { padding: 4px 5px 6px; line-height: 21px; text-align: left; }
.height_25 { height: auto; }
.height_15 { height: auto; }
.label_base label{
height: auto;
font-size:16px;
}
.edit_file img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}
.comments_icon a {
    color: #ff8200;
    font-size: 20px;
    margin-bottom: 50px;
}
.comments_icon a:hover {
    color: #ff8200;
    font-size: 20px;
     margin-bottom: 50px;
}
.comments_icon a:focus {
    color: #ff8200;
    font-size: 20px;
     margin-bottom: 50px;
}
.border_like {
    border: solid 1px #ececec;
    padding: 9px 8px;
    margin: 35px 0px 0px;
    width: 100%;
}
.comments_icon {
    line-height: 18px;
    text-align: center;
}
.like_icon a {
     font-size: 24px;  
     margin-right: 5px;
}

.like_icon a:hover {
     font-size: 24px;  
     margin-right: 5px;
}
.like_icon a:focus {
     font-size: 24px; 
     margin-right: 5px; 
}

.dislike_icon a {
     font-size: 24px; 
     margin-right: 2px; 
}

.dislike_icon a:hover {
     font-size: 24px; 
      margin-right: 2px;  
}
.dislike_icon a:focus {
     font-size: 24px;  
      margin-right: 2px; 
}
.login_holder ul li {
    margin: 0px 0px 0px 0px;
    font-size: 13px;
    padding: 10px 0px 3px 0px;
    background-color: #fff;
}
}
 @media (min-width:260px) and (max-width: 319px) {
.logo { text-align: center; max-width: 45%; margin: 0 auto; }
.top_hedding { font-size: 19px; padding-top: 9px; line-height: 25px; text-align: center; }
h1, h1 a, h1 a:hover { font-size: 1.1em; line-height: normal; padding-bottom: 15px; }
.signin_link { text-align: center; }
.sign_text { text-align: center; }
.login_holder { padding: 18px; }
.login_form { padding: 35px 0px; }
.name_uni { padding: 18px 24px; line-height: normal; }
.video_holder iframe { width: 100%; min-height: 270px; }
.signin_link { text-align: center; }
.sign_text { text-align: center; }
.login_holder { padding: 18px; }
.mail_icon { width: 35px; }
.pass_icon { width: 35px; }
.login_form { padding: 35px 0px; }
.price_inv { padding: 12px; }
.nav_base ul { padding: 0px; margin: 0px; list-style-type: none; }
.nav_base ul li { font-size: .9em; }
.nav_base ul li a { font-size: .9em; }
.nav_base ul li a:hover { font-size: .9em; }
.nav_base ul li a:focus { font-size: .9em; }
.nav-link { display: block; padding: .5rem .5rem;
}
.name_uni { padding: 5px 0px; }
.student_btn { margin-top: 0px; display: inline-block; padding: 6px 0px 10px; margin-left: 0px; }
.admin { text-align: center; padding: 0px; }
.stu_his h4 { font-size: 20px; }
.std_name { padding-top: 0px; }
.student_sub { margin-top: 14px; display: block; }
.best_result { padding: 15px; }
.stu_his { padding: 0px 0px 0px; }
.oreg_btn { margin-top: 0px; margin-bottom: 0px; display: block; }
.back_btn { margin-top: 0px; margin-bottom: 0px; display: block; }
.consept { margin-top: 15px; padding: 6px; }
.stu_his_base { padding: 10px 5px; }
.admin ul li a { font-size: 13px; }
.admin ul li a:hover { font-size: 13px; }
.admin ul li a:focus { font-size: 13px; }
.admin ul li a.active { font-size: 13px; }
.stu_edit { padding: 4px 5px 6px; line-height: 21px; text-align: left; }
.height_25 { height: auto; }
.height_15 { height: auto; }

.label_base label{
height: auto;
font-size:16px;
}
.edit_file img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}
.comments_icon a {
    color: #ff8200;
    font-size: 22px;
}
.comments_icon a:hover {
    color: #ff8200;
    font-size: 22px;
}
.comments_icon a:focus {
    color: #ff8200;
    font-size: 22px;
}
.border_like {

    border: solid 1px #ececec;
    padding: 12px 20px;
    margin: 25px;
    width: 277px;

}
.comments_icon {
    line-height: 18px;
    text-align: center;
}
.login_holder ul li {
    margin: 0px 0px 0px 0px;
    font-size: 13px;
    padding: 10px 0px 3px 0px;
    background-color: #fff;
}
}