style.scss

$primary: #11998e;
$secondary: #38ef7d;

body {
    display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 35vh;
  font-size: 1.5rem;
  background-color:#222222;
}

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: 'Courier New', Courier, monospace;
}
p {
    font-size: 18px;
    color: white;
}
#container {
    padding: 45px 45px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* CSS */
button {
  background: #FF4742;
  border: 1px solid #FF4742;
  border-radius: 6px;
  box-shadow: rgba(0, 0, 0, 0.1) 1px 2px 4px;
  box-sizing: border-box;
  color: #FFFFFF;
  cursor: pointer;
  display: inline-block;
  font-family: nunito,roboto,proxima-nova,"proxima nova",sans-serif;
  font-size: 16px;
  font-weight: 800;
  line-height: 8px;
  min-height: 8px;
  outline: 0;
  padding: 12px 14px;
  text-align: center;
  text-rendering: geometricprecision;
  text-transform: none;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  vertical-align: middle;
}

button:hover,
button:active {
  background-color: initial;
  background-position: 0 0;
  color: #FF4742;
}

button:active {
  opacity: .5;
}
input[type=text] {
    padding: 7px;
}
input[type=text]:focus {
    transition: 0.2s;
    font-size: 1rem;
    color: $primary;
    font-weight:700; 
    padding-bottom: 6px;  
    font-weight: 700;
    border-width: 3px;
    border-image: linear-gradient(to right, $primary,$secondary);
    border-image-slice: 1;
}
h3 {
    color: white;
    border: 1px solid white;
    display: grid;
    text-align: left;
    padding: 15px;
    font-size: 12px;

}