* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.container{
  background-color: darkred;
  height: 100px;
  width: 100px;
  align-items: center;

}
.item{
  
  background-color: black;
  position: fixed;
  color: white;
  height: 75px;
  width: 100000px;
  align-items: center;
  display: flex;
  flex-direction: row;
}