h1 {
  text-align: center;
}

ol {
  font-size: xx-large;
  margin: 20px;
}

.arm {
  list-style-type: armenian;
}

.decimal {
  list-style-type: decimal-leading-zero;
}

.georgian {
  list-style-type: georgian;
}

.pseudo {
  margin: 0 20px;
}

.pseudo::before {
  color: white;
  content: 'T';
}

.alpha {
  list-style-type: lower-alpha;
}

.greek {
  list-style-type: lower-greek;
}

.roman {
  list-style-type: lower-roman;
}

h2 {
  text-align: center;
}

.position {
  display: flex;
  justify-content: center;
}

button {
  border-width: 0;
  color: white;
  cursor: pointer;
  display: inline-block;
  font-size: x-large;
  margin: 10px;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.color-button-1 {
  background-color: skyblue;
  border-radius: 50px;
  height: 60px;
  width: 220px;
}

.color-button-2 {
  background-color: deepskyblue;
  border-radius: 50px;
  height: 60px;
  width: 220px;
}

.color-button-4 {
  background-color: mediumpurple;
  border-radius: 6px;
  height: 120px;
  transition: 1s;
  width: 220px;
}

.animation::before {
  border-radius: 50px;
  content: '';
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  transform: translateX(-100%);
  transition: all ease-in-out 700ms;
  width: 100%;
  z-index: -1;
}

.animation-2::before {
  border-radius: 20px;
  content: '';
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  transform: translateX(-100%);
  transition: all ease-in-out 700ms;
  width: 100%;
  z-index: -1;
}

.button-1::before {
  background-color: deepskyblue;
}

.button-2::before {
  background-color: skyblue;
}

.button-3::before {
  background-color: skyblue;
  transition: all ease-in-out 1.6s;
}

.button-4::before {
  background-color: blueviolet;
}

.color-button-4:hover {
  border-radius: 20px;
}

.hover-1:hover::before {
  transform: translateX(0%);
  transition: all ease-in-out 700ms;
}

.hover-2:hover::before {
  transform: translateX(100%);
  transition: all ease-in-out 1.6s;
}

.color-button-4:active {
  border-radius: 100px;
  transition: 1s;
}