* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
a {
  text-decoration: none;
}
ol,
ul {
  list-style: none;
}

body {
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  background-color: #3b3b4f;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
body > div:first-child {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.freecodecamp-logo {
  width: 100%;
  height: 30px;
  margin-bottom: 20px;
}
h1 {
  color: white;
  margin-bottom: 15px;
  max-width: 480px;
  width: 100%;
  text-align: center;
}
.box {
  width: 250px;
  height: 460px;
  margin: 30px auto;
  border-radius: 15px;
  border: 15px solid black;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.phone {
  width: 100%;
  height: 25px;
  background-color: #000000;
}

.phone-camera {
  background-color: white;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin: auto;
}
.input_block {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: #e1e1e3;
  width: 100%;
  height: 100%;
}
label {
  margin: 10px auto 5px;
}
#user-input {
  display: block;
  margin: 10px auto;
  padding: 5px;
  border: 1px solid black;
  border-radius: 10px;
  text-align: center;
  width: 90%;
  height: 42px;
  font-size: 16px;
}
#results-div {
  font-size: 1.2rem;
  padding: 5px;
  text-align: center;
  margin: 10px 0;
  color: rgb(0, 71, 27);
}
.btns {
  background-color: black;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-style {
  cursor: pointer;
  width: 100px;
  margin: 10px;
  color: #0a0a23;
  font-size: 18px;
  background-color: #ffffff;
  background-image: linear-gradient(#ffffff, #928d86);
  border-color: #ffffff;
  border-width: 3px;
}