body {
    font-family: 'Roboto', sans-serif;;
}

h1 {
    text-align: center;
    margin-top: 40px;
    margin-bottom: 60px;
}

.button-30 {
  align-items: center;
  appearance: none;
  background-color: #FCFCFD;
  border-radius: 4px;
  border-width: 0;
  box-shadow: rgba(45, 35, 66, 0.4) 0 2px 4px,rgba(45, 35, 66, 0.3) 0 7px 13px -3px,#D6D6E7 0 -3px 0 inset;
  box-sizing: border-box;
  color: #36395A;
  cursor: pointer;
  display: inline-flex;
  font-family: 'Roboto', sans-serif;;
  height: 48px;
  justify-content: center;
  line-height: 1;
  list-style: none;
  overflow: hidden;
  padding-left: 16px;
  padding-right: 16px;
  position: relative;
  text-align: left;
  text-decoration: none;
  transition: box-shadow .15s,transform .15s;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  white-space: nowrap;
  will-change: box-shadow,transform;
  font-size: 18px;
  margin-left: 0.1rem;
  margin-right: 0.1rem;
  margin-top: 0.2rem;
}

.button-30:focus {
  box-shadow: #D6D6E7 0 0 0 1.5px inset, rgba(45, 35, 66, 0.4) 0 2px 4px, rgba(45, 35, 66, 0.3) 0 7px 13px -3px, #D6D6E7 0 -3px 0 inset;
}

.button-30:hover {
  box-shadow: rgba(45, 35, 66, 0.4) 0 4px 8px, rgba(45, 35, 66, 0.3) 0 7px 13px -3px, #D6D6E7 0 -3px 0 inset;
  transform: translateY(-2px);
}

.button-30:active {
  box-shadow: #D6D6E7 0 3px 7px inset;
  transform: translateY(2px);
}

.block-code {
  width: 90%;
  height: 200rem;
  
  /* Center horizontally*/
  margin: 0 auto;
}

.main {
    width: 90%;
    /* height: 200rem;
     */
    /* Center horizontally*/
    margin: 0 auto;
  
}

.block-code h3 {
    background: rgb(9,9,121);
    background: linear-gradient(90deg, rgba(9,9,121,1) 0%, rgba(92,210,183,0.5690651260504201) 100%);
    color: #F4F5F6;
    padding-top: 1rem;
    padding-bottom: 1rem;
    padding-left: 1rem;
}