* {
  margin: 0;
  background: black;
}
body {
  overflow: hidden;
}
.outer {
  height: 100vh;
  width: 50vh;
  margin: 0 auto;
}
.container {
  width: 100%;
  height: 100%;
  margin: 0 auto;
  background-color: black;
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  grid-gap: 1px;
  border: 1px #333 solid;
}
.box {
  background-color: black;
  border-radius: 5px;
}
.lost {
  position: absolute;
  background-color: rgba(255,0,0,0.9);
  width: 40vw;
  height: 40vh;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 5px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 25px;
  font-family: "Helvetica", sans;
  display: none;
}
.lost span {
  background-color: transparent;
  margin-bottom: 30px;
}
.lost div {
  background-color: darkred;
  position: absolute;
  right: 15px;
  bottom: 15px;
  padding: 5px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.5s;
  font-size: 20px;
  border: 1px transparent solid;
}
.lost div:hover {
  background-color: rgba(150,0,0,0.7);
  border: 1px black solid;
}