.box {
    padding: 0.5em 1em;
    margin: 2em 0;
    font-weight: bold;
    border: solid 3px #000000;
    background-color: #ffffff;
    width: 80%;
}

.bg_pattern {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: #ffe9a7;
  opacity: 0.4;
  z-index: -1;
}
.Diagonal {
  background: repeating-linear-gradient( 45deg, #CCFFFF, #CCFFFF 10px, #95FFFF 10px, #99FFFF 50px );
}