water.css

@import url('https://fonts.googleapis.com/css?family=Montserrat:400,600&display=swap');
*{
    box-sizing: border-box;
}
body{
    display: flex;
    height: 100vh;
    align-items: center;
    text-align: center;
    background-color: #3494e4;
    font-family: "Montserrat",sans-serif;
    flex-direction: column;
}
.heading-1{
    color: white;
    font-weight: bold;
    font-size: 2em;
    margin: 10px 0;
}
p{
    color:white;
    font-weight: 400;
    font-size: 1.17em;
}
.bigcup{
    display: flex;
    flex-direction: column;
    height: 330px;
    width: 150px;
    border: 4px solid #144fc6;
    justify-content: center;
    text-align: center;
    align-items: center;
    margin: 30px auto;
    background-color: white;
    border-radius: 0 0px 40px 40px;
    color: #144fc6;
    overflow: hidden;
}
span{
    color: #144fc6;
    font-weight: bold;
    margin: auto;
text-align: center;
margin: 0 40px;
}
small{
    color: #144fc6;
    text-align: center;
}
.smallcups{
    height: 95px;
    width: 50px;
    background-color: white;
    border-radius: 0 0 15px 15px;
    border:4px solid #144fc6;
    align-items: center;
    justify-content: center;
    display: flex;
    margin: 5px;
}
.cups{
    display: flex;
    flex-wrap: wrap;
    width: 280px;
    margin: auto;
    justify-content: center;
}
.smallcups:hover{
    cursor: pointer;
}
.remained{
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1;
}
.smallcups.full{
    background-color: #6ab3f8;
    color: white;
    transition: 0.3s ease;
}
.percentage{
    background-color: #6ab3f8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 30px;
  height: 0;
  width: 100%;
  transition: 0.3s ease;
  
}