* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}
.container {
  width: 100%;
  height: 100vh;
  position: relative;
}
.navbar {
  width: 85%;
  height: 15vh;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  width: 80px;
  cursor: pointer;
}
.menu-icon {
  width: 30px;
  cursor: pointer;
}
.row {
  width: 85%;
  height: 85vh;
  margin: auto;
  display: flex;
  position: relative;
}
.left-col {
  flex-basis: 45%;
  height: 100%;
  position: relative;
}
.content {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}
.content h1 {
  font-size: 45px;
  line-height: 50px;
  letter-spacing: 1px;
}
.content p {
  font-size: 13px;
  line-height: 18px;
  color: #adadad;
  margin: 20px 0px;
}
span {
  color: #ff5174;
}
.arrow {
  width: 40px;
  height: 40;
  padding: 12px 0;
  border: 1px solid #ff5174;
  box-sizing: border-box;
  cursor: pointer;
  text-align: center;
  border-radius: 50%;
}
.arrow img {
  width: 25px;
}
.art {
  width: 250px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.right-col {
  flex-basis: 55%;
}
#picture {
  height: 100%;
  margin: auto;
  display: block;
}
.controller {
  position: absolute;
  top: 50%;
  right: 20px;
  transform: translateY(-50%);
}
.controller ul li {
  list-style: none;
  font-size: 12;
  font-weight: bold;
  color: #fff;
  padding: 0 30px;
  margin-bottom: 20px;
  cursor: pointer;
  line-height: 50px;
}
.controller ul li::after,
.controller .active::after {
  content: '';
  width: 2px;
  height: 50px;
  position: absolute;
  background: #a2a2a2;
  left: 0;
}
.controller .active::after {
  background: #ff5174;
}
.container .active {
  color: #000;
}