body{
    background-color: rgb(226, 229, 232);
}
.header{
    background-color: #094a25;
    height: 180px;
    text-align: center;
    
    border-radius: 5px;
    color: white;
}
.container{
    width: 50%;
    margin: auto;
    border: 1px solid #094a25;
    border-radius: 5px;
    padding-right: 10px;
    padding-left: 10px;
}
h1{
    padding-top: 5px;
    font-size: 28px;
}
h2{
    font-size: 20px;
    padding-top: 10px;
}
input{
    width: 80px;
    height: 60px;
    font-size: 35px;
    text-align: center;
    outline-style: none;
    background-color: transparent;
    border: 1px solid white;
    border-radius: 5px;
    color: white;
}
button{
    height: 30px;
    width: 85px;
}
.length, .volume, .mass{
    background-color: white;
    text-align: center;
    height: 100px;
    width: 90%;
    margin: auto;
    border-radius: 5px;
}