*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body{
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #008B8B;
}
.container{
  position: relative;
  width: 300px;
}
.container .inputB{
  position: relative;
  width: 100%;
  background: #fff;
  padding: 8px 5px;
  border-radius: 5px;
  box-shadow: 2px 10px 20px rgba(0, 0, 0, .1);
}
.container .inputB input{
  position: relative;
  width: 100%;
  border: none;
  outline: none;
  padding: 10px;
}
.container .inputB input[type="username"]{
  border-bottom: 1px solid rgba(0, 0, 0, .1);
}
.container .inputB #toggleBtn{
  position: absolute;
  bottom: 5px;
  right:10px ;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(0, 0, 0, .1);
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
}
.container .inputB #toggleBtn::before{
  content: '\f06e';
  font-family: fontAwesome;
  color: #000;
}
.container .inputB #toggleBtn.hide::before{
  content: '\f070';
}
.validation{
  background: rgba(0, 0, 0, .4);
  color: #000;
  padding: 10px;
  margin-top: 20px;
  border-radius: 5px;
  box-shadow: 2px 10px 20px rgba(0, 0, 0, .1);
}
.validation ul{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.validation ul li{
  position: relative;
  list-style: none;
  color: #fff;
  font-size: 14px;
  transition: .3s;
}
.validation ul li.valid{
  color: rgba(255, 255, 255, .5);
}
.validation ul li::before{
  content: '\f192';
  width: 20px;
  height: 10px;
  font-family: fontAwesome;
  display: inline-flex;
}
.validation ul li.valid::before{
  content: '\f00c';
  color: #0f0;
}