style.css

* {
  background: rgb(25, 44, 73);
 
  color: cornsilk;
  box-sizing: border-box;
   text-decoration: none;
}
h1 {
  margin-left: 43%;
}
h3 {
 text-align:center;
}
.fix {
  background: transparent;
  background-position: center;
  background-attachment: fixed;
  justify-content: center;
  align-items: center;
}

.text {
  background: transparent;
  color: blue;
  font-size: 20px;
 
}

.small {
  padding: 5%;
}
.level-one,
.level-two {
  margin-left: 2%;
  margin-right: 2%;
  display: flex;
  justify-content: space-around;
}
button {
  background-color: #fff;
  border: 2px solid black;
  color: darkblue;
  justify-content: space-around;
  align-items: flex-end;
  border-radius: 0 0 30px 30px;
  height: 10vh;
  width: 80px;
  display: flex;
  flex-direction: column;
}

#lt ,#pcnt{
  background: transparent;
  color: rgb(15, 15, 95);
  font-size: 20px;
  visibility: visible;
}

.filled {
  /*background-color: powderblue;
  visibility:hidden;
  overflow:hidden;
  min-height:0;
   height:0px;
  border-radius: 0 0 40px 40px;
  width: 200px;
  margin-left: 42%;
  display: flex;
  flex-direction: column;
  transition: 0.2s ease;
  justify-content: center;
  align-items: center;
  position: absolute;*/
    bottom:0;
    
    background-color: powderblue;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 30px;
    height: 0;
    width:200px;
    min-height:0%;
    transition: 0.4s ease;
    margin-bottom: 0%;
}

.bottle {
 /* height: 300px;
  background:transparent;
  position: relative;
  border:20px solid rgb(25, 44, 73);
  overflow:hidden;*/
    
   /* border: 4px solid var(r);*/
   background-color: #fff;
    color: white;
    border-radius: 0 0 40px 40px;
    height: 300px;
    width: 200px;
    justify-content: center;
    align-items: center;
    display: flex;
    margin-left:42vw;
    flex-direction: column;
    overflow: hidden;
    border: 5px solid darkgray;
}
.remained {
 position:relative;
   visibility: visible;
 
  background-color: #fff;
  transition: 0.4s ease;

 /* border-radius: 0 0 40px 40px;*/
  height: 100%;
  width: 200px;
  
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  
}
@media screen and (max-width: 420px) {
 .bottle{
        margin-left:75px;
    }
    h1{
        margin-left:88px ;
    }
}