*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  color: #fff;
}
html,body{
  height: 100%;
  width: 100%;
}
#main{
  background-color: black;
  height: 100%;
  width: 100%;
  position: relative;
}
.elem{
  height: 100px;
  width: 100%;
  /* background-color: red; */
  border-bottom: 2px solid #fff;
  display:flex;
  align-items: center;
  justify-content: flex-start;
  position: relative;
}
.elem h1{
  font-size: 6vw;
  position: relative;
  z-index: 1;
  mix-blend-mode: difference;
}
.elem img{
  height: 90px;
  width: 90px;
  object-fit: cover;
  border-radius: 45px;
  object-position: center;
  position: absolute;
  /* transform: translate(-50%, -50%); */
  opacity: 0;
  transition: all linear 0.3s;
}