.background-header {
  margin-top: 28px;
}
.slider-button {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: reverse;
  -ms-flex-direction: row-reverse;
  flex-direction: row-reverse;
  -webkit-box-pack: end;
  -ms-flex-pack: end;
  justify-content: end;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 12px;
  margin-top: -100px;
}
.slider-button .swiper-button-next,
.slider-button .swiper-button-prev {
  position: unset;
  margin: unset;
}
.slider-swiper img {
  width: 100%;
  -webkit-box-shadow: 0px 0px 35px rgba(0, 0, 0, 0.1);
  box-shadow: 0px 0px 35px rgba(0, 0, 0, 0.1);
}
.slider-swiper .line-text {
  text-align: justify;
}
.teacher-swiper img,
.blog-swiper img {
  border-radius: calc(var(--input-radius) - 4px);
  -webkit-box-shadow: 0 0 10px 0 #c6c6c6;
          box-shadow: 0 0 10px 0 #c6c6c6;
}
.course-div img {
  height: 110px;
  width: auto;
}
.course-div .content {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 20px;
}
.comment-owner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 12px;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  margin-bottom: 12px;
}
.comment-owner img {
  width: 50px;
  border-radius: 50px;
}
.video-div video {
  width: 100%;
  cursor: pointer;
}
.video-slider-div {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  width: 100%;
}
.video-slider-div a {
  font-size: 1.3rem;
  font-weight: 900;
  padding: 32px;
  text-align: center;
}
@media screen and (max-width: 768px) {
  .slider-button {
    margin-top: 24px;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
  }
  .video-slider-div a {
    font-size: 0.9rem;
  }
  .scroll-text{
    -webkit-animation-duration: 14s;
            animation-duration: 14s;
  }
}
@media screen and (max-width: 390px) {
  .course-div .content {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
  }
  .course-div img {
    height: auto;
    width: 100%;
  }
}