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

html,
body {
  width: 100%;
  height: 100%;
  background-color: #121212;
}

#Head {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100px;
  margin: 20px;
  padding-top: 50px;
  padding-bottom: 100px;
  text-align: center;
}
h1 {
  color: black;
  background-color: yellow;
}
h2 {
  color: orange;
  align-self: center;
}

h3 {
  color: orange;
  position: absolute;
  bottom: 1%;
  right: 3%;
  width: 150px;
  text-align: left;
}
#rules {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

#Warn {
  color: red;
}

#form {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 100px;
  height: 100px;
}

.Form_div {
  color: aliceblue;
  text-align: center;
  padding: 10px;
}

#label {
  font-weight: bold;
  color: aliceblue;
  font-size: 25px;
  text-indent: 5px;
}

#input {
  width: 400px;
  height: 50px;
  border-radius: 5px;
  border-color: whitesmoke;
  background-color: black;
  box-shadow: 0 6px 10px 0 rgba(156, 154, 154, 0.19),
    0 8px 22px 0 rgba(156, 154, 154, 0.19);
  box-sizing: content-box;
}

input:focus {
  font-weight: bold;
  color: aliceblue;
  font-size: 15px;
  text-indent: 5px;
}

input::placeholder {
  font-weight: bold;
  color: aliceblue;
}

#Btn {
  background-color: aqua;
  width: 200px;
  height: 30px;
  border-radius: 6px;
  font-weight: bold;
  color: black;
  font-size: 15px;
  border-color: darkblue;
}
#Btn_end {
  background-color: Red;
  width: 175px;
  height: 25px;
  border-radius: 6px;
  font-weight: bold;
  color: black;
  font-size: 15px;
  border-color: darkblue;
}

#out {
  padding-top: 100px;
  color: darkkhaki;
  text-align: center;
  font-size: 25px;
}
#Remain {
  color: aliceblue;
}

#LowHigh {
  font-weight: bold;
  color: Red;
  font-size: 25px;
  text-indent: 5px;
  padding: 40px;
}
#arr {
  background-color: burlywood;
  color: black;
  font-family: "Lucida Sans", "Lucida Sans Regular", "Lucida Grande",
    "Lucida Sans Unicode", Geneva, Verdana, sans-serif;
}