*{
    margin: 0;
    box-sizing: border-box;
    font-family: Helvetica;
}
body{
    background-color: rgb(205, 231, 255);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
#container{
    background-color: rgb(255, 255, 255);
    width: 300px;
    height: 250px;
    border-radius: 20px;
    box-shadow: 0px 1px 8px 1px #000000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    animation-name: load;
    animation-duration: 1s;
}
@keyframes load{
    from{transform: translateY(0.5cm);}
    from{opacity: 0.5;}
}
#title{
    color: rgb(51, 51, 51);
    transform: translateY(-25mm);
    font-size: 30px;
}
#contents{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateY(-7mm);
    transform: scale(1.3);
}
input{
    border: 2px solid black;
    border-radius: 5px;
    width: 155px;
}
button{
    cursor: pointer;
}
#convert-btn{
    width: 155px;
    color: white;
    background-color: rgb(12, 99, 0);
    border: none;
    transform: translateY(-5mm);
    padding: 5px;
    transition: 0.3s ease;
    border-radius: 5px;
}
#convert-btn:hover{
    background-color: rgb(7, 68, 0)
}
#switch-btn{
    background: none;
    border: none;
    padding: 0px;
    transform: translate(18.5mm, -16mm);
}
#result-box{
    width: 155px;
}
#result{
    font-weight: bold;
    text-align: center;
}