*{
    box-sizing: border-box;
}
    
:root{
    --bttn-bg-color:teal;
    --bttn-txt-color:whitesmoke;
    font-size: 20px;
    font-family: Arial, Helvetica, sans-serif;
}

#container{
    margin: auto;
    width: 35rem;
    height: 40rem;      
}

header{
    font-size: 2rem;
    font-weight: 400;
    color: dodgerblue;
    text-align: center;
    background-color: darkkhaki;
}

#help{
    font-size: small;
}
#instructions{
    font-size: small;
    color: black;
}

#score{
    margin: auto;
    margin-top: 0.3rem;
    width: 6rem;
    height: 6rem;
    border:solid;
    border-radius: 50%;
    text-align: center;
    padding-top: 1.5rem;
    font-size: 2rem;
}

#messages,#final-message{
    margin-top: 0.3rem;
    height: 2.5rem;
    text-align: center;
    font-size: 1.5rem;
    
}

#fractions-area{
    display: flex;
    margin: auto;
    margin-top: 0.3rem;
    width: 30rem;
    height: 20rem;
}

#fraction-1,#fraction-2,#symbol{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-evenly;
    width: 10rem;
    height:20rem;    
       
}

.terms{    
    background-color: #aaaaaa;
    width: 8rem;
    height: 8rem;
    font-size: 6rem;
    text-align: center;
}

.bar{
    background-color: black;
    width: 8rem;
    height: 0.5rem;
}

#symbol{
    font-size:10rem;
}
#buttons-area{
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    margin: auto;
    margin-top: 0.3rem;
    width: 30rem;
    height: 4rem;     
}

.buttons{    
    width: 6rem;
    height: 3rem;
    background-color:var(--bttn-bg-color);
    color: var(--bttn-txt-color);    
    border-radius: 10%;
    font-size: 3rem;
    text-align: center;  
}

.buttons:hover,#control-button:hover{
    cursor: pointer;
    box-shadow: 0px 0px 20px 5px #aaaaaa;
}

#control-button{
    margin: auto;
    margin-top: 0.3rem;
    width: 6rem;
    height: 3rem;
    background-color:var(--bttn-bg-color);
    color: var(--bttn-txt-color);
    border-radius: 1rem;
    text-align:center;
    padding: 0.6em;
    
}