* {
  box-sizing: border-box;
}
body {
  font-family: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande",
    "Lucida Sans", Arial, sans-serif;
  font-size: 14px;
  line-height: 20px;
  color: #333;
  margin: 0;
}
.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
  /* border: 1px solid #333; */
}
.vh {
  height: 100vh;
}
/* img {
  box-shadow: 3px 3px 5px rgb(51, 51, 51, 0.5);
} */