main.css

:root {
  --main-color: rgb(255 255 255 / 80%);
}
* {
  box-sizing: border-box;
}
body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: #333;
}

p {
  color: var(--main-color);
  font-size: 30px;
  width: 26ch; /* You Can Use 28ch*/
  margin: 30px auto;
  border-right: 2px solid var(--main-color);
  overflow: hidden;
  white-space: nowrap;
  animation: control-width 3s steps(28) 2s both, blink 0.5s infinite;
}
@keyframes control-width {
  from {
    width: 0;
  }
  to {
    width: 26ch;
  }
}
@keyframes blink  {
  from {
    border-right-color: var(--main-color);
  }
  to {
    border-right-color: transparent;
  }
}
div {
  width: 300px;
  margin: 20px auto;
}
input {
  padding: 15px;
  width: 100%;
  border: none;
  border-bottom: 2px solid #d7d7d7;
  background-color: #fbfbfb;
}
input:focus {
  outline: none;
}
.progress {
  background-color: #2196f3;
  height: 2px;
  width: 0;
  display: block;
  position: relative;
  top: -2px;
  transition: 0.5s;
}
.count {
  display: block;
  text-align: right;
  font-size: 12px;
  padding: 5px;
}
.zero {
  font-weight: bold;
  color: red;
}
.box{
  margin: 40px auto;
  width: 300px;
  height: 300px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.box:before {
  width: 4px;
  height: 100%;
  left: 50%;
  margin-left: -2px;
}
.box:after {
  height: 4px;
  width: 100%;
  top: 50%;
  margin-top: -2px;
}
.box:before,
.box:after {
  content: "";
  background-color: #ddd;
  position: absolute;
}
.box:hover button{
  box-shadow: 0 0 0 130px #eee;
}
button {
  background-color: #eee;
  margin: 5px auto;
  padding: 10px 20px;
  display: block;
  font-size: 20px;
  border: none;
  position: relative;
  cursor: pointer;
  overflow: hidden;
  border-radius: 10px;
  z-index: 2;
  transition: 0.5s;
}
button:focus {
  outline: none;
}
button span {
  background-color: #333;
  color: #fff;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-size: 18px;
  min-width: 240px;
  padding: 10px 15px;
  top: -60px;
  transition: 0.5s;
}
button span:before {
  content: "";
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  border-style: solid;
  border-width: 10px;
  border-color: #333 transparent transparent;
}
button:hover {
  overflow: visible;

}
button:hover span {
  opacity: 1;
}
[data-position="bottom"] span {
  top: auto;
  bottom: -60px;
}
[data-position="bottom"] span:before {
  bottom: auto;
  top: -20px;
  border-color: transparent transparent #333;
}