body,
ul,
p,
h1,
h2,
h3 {
  margin: 0;
  padding: 0;
}
body {
  padding: 0;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
  background-color: #ecf2f5;
}

a {
  color: #00b7ff;
  text-decoration: none;
}

.nav {
  position: absolute;
  right: 150px;
  top: 0;
  width: 650px;
  background-color: #fff;
}

.left-logo img {
  height: 30px;
  margin: 20px 30px;
}

.left-logo,
.left-logo a {
  float: left;
}

.right-view {
  float: right;
  display: flex;
  width: 300px;
  align-items: center;
  justify-content: space-around;
}

.menu-item {
  padding: 0 20px;
  display: block;
  height: 73px;
  line-height: 73px;
}

/*vip下拉菜单*/
img.course-img {
  width: 50px;
}

.menu-vip {
  width: 650px;
  position: absolute;
  z-index: 10000;
  right: 0;
}

.menu-arrow {
  border: 8px solid transparent;
  border-bottom-color: white;
  width: 0;
  height: 0;
  position: absolute;
  top: -6px;
  left: 388px;
}

.menu-content {
  background: white;
  border-radius: 3px;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.2);
}

p.vip-title {
  margin: 10px;
  padding: 10px;
  border-bottom: 1px solid #ddd;
}

.course-list {
  overflow: hidden;
  padding: 15px 0;
}
.course-list-item {
  float: left;
  margin: 10px;
}
img.course-img {
  float: left;
  margin-left: 16px;
}

.course-text {
  float: left;
}

.course-text {
  width: 220px;
  margin-left: 12px;
}

.course-list-item p.course-name {
  font-size: 14px;
  color: #909090;
}

p.course-describe {
  color: #ababab;
  font-size: 12px;
  margin-top: 5px;
}

#home-banner-video {
  position: fixed;
  z-index: 200000;
  top: 0px;
  left: 0px;
  width: 100%;
  margin-top: -64px;
}

.vip-course-text > h1 {
  color: #00aff2;
  font-size: 38px;
  font-weight: normal;
}

.vip-course-box {
  margin-top: 124px;
}

.vip-course-text {
  margin: 0 16% 20px;
}

.vip-course-text > p {
  color: #00aff2;
  font-size: 28px;
}

.vip-course-list {
  margin: 0 16%;
}

.vip-course-item {
  position: relative;
  height: 370px;
  margin-bottom: 20px;
    background-position: center;
    background-size: auto 100%;
}

.right-img {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 58%;
  background-position: center;
  background-size: auto 100%;
}

.left-text {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 42%;
  background: #191a1b;
  padding: 40px 30px 30px;
  box-sizing: border-box;
}

.left-text > p {
  color: white;
}

p.course-name {
  font-size: 32px;
}

.cooperate-company > span {
  color: white;
}

.cooperate-company > img {
  height: 16px;
}

img.arrow {
  margin-top: 5px;
  position: absolute;
  right: 30px;
  bottom: 36px;
}

.cooperate-company {
  position: absolute;
  bottom: 30px;
}

