style.css

/* CSS */
button {
  align-items: center;
  appearance: none;
  background-image: radial-gradient(100% 100% at 100% 0, #5adaff 0, #5468ff 100%);
  border: 0;
  border-radius: 6px;
  box-shadow: rgba(45, 35, 66, .4) 0 2px 4px,rgba(45, 35, 66, .3) 0 7px 13px -3px,rgba(58, 65, 111, .5) 0 -3px 0 inset;
  box-sizing: border-box;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  font-family: "JetBrains Mono",monospace;
  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;
}

button:focus {
  box-shadow: #3c4fe0 0 0 0 1.5px inset, rgba(45, 35, 66, .4) 0 2px 4px, rgba(45, 35, 66, .3) 0 7px 13px -3px, #3c4fe0 0 -3px 0 inset;
}

button:hover {
  box-shadow: rgba(45, 35, 66, .4) 0 4px 8px, rgba(45, 35, 66, .3) 0 7px 13px -3px, #3c4fe0 0 -3px 0 inset;
  transform: translateY(-2px);
}

button:active {
  box-shadow: #3c4fe0 0 3px 7px inset;
  transform: translateY(2px);
}

div,b,span {
  font-family: "Cousine", monospace;
  font-weight: 400;
  font-style: normal;
}

H1 {
  font-family: "Cousine", monospace;
  font-weight: 700;
  font-style: normal;
}

.cousine-regular-italic {
  font-family: "Cousine", monospace;
  font-weight: 400;
  font-style: italic;
}

b {
  font-family: "Cousine", monospace;
  font-weight: 700;
  font-style: italic;
  color:darkslateblue;
}

span{float:left;}
button{float: right; margin:5px;}
div{float: left; padding-bottom: 10px;  line-height: 1.5;}
body{padding:10px;display: flex; justify-content: center;}

.light {
  color: gray;
}
center {
  clear: both;
}