* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: consolas;
}
body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #cfd1e1;
  overflow: hidden;
}
.container {
  position: relative;
  width: 65px;
  height: 50px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.container:hover{
    width: 400px;
    transition: 0.8s;
}
.container::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 10px;
  height: 100%;
  background: linear-gradient(#fff, #fff, #e3e3e3);
  z-index: 1;
  filter: blur(1px);
}
.container::after {
  content: "";
  position: absolute;
  top: 0;
  right: -1px;
  width: 10px;
  height: 100%;
  background: #9d9d9d;
  z-index: 1;
  filter: blur(1px);
}
.shadow {
  position: absolute;
  width: calc(100% + 50px);
  height: 300px;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.1),
    transparent,
    transparent
  );
  top: 0;
  left: -50px;
  transform-origin: top;
  transform: skew(45deg);
}
.shadow::before {
  content: "";
  position: absolute;
  width: 50px;
  height: 50px;
  background: #cfd1e1;
  z-index: 1;
}
.container input {
  position: relative;
  width: 100%;
  height: 100%;
  border: none;
  outline: none;
  font-size: 1.1em;
  color: #555;
  background: linear-gradient(#dbdae1, #a3aaba);
  padding: 10px 25px;
  box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.1), 15px 15px 15px rgba(0, 0, 0, 0.1),
    20px 20px 20px rgba(0, 0, 0, 0.1), 30px 30px 30px rgba(0, 0, 0, 0.1),
    inset 1px 1px 2px #fff;
}
.container input , .container input::placeholder{
    color: transparent;
}
.container:hover input,.container:hover input::placeholder{
    color: #555;
}
.bi{
    position: absolute;
    right: 20px;
    color: #555;
    font-size: 1.5em;
    cursor: pointer;
}