index.css

body{
    background-color: antiquewhite;
    margin: 0;
}
header{
    background-color: thistle;
    display: block;
    margin: 0;
    padding-top: 1rem;
    min-height: 5rem;
  

}

header h1{
    font-size: 3rem;
    color: blue;
    text-align: center;
    margin: 0;
    transform: rotateZ(2deg);

}


#optionsContainer{
    margin: 10px;
    padding: 10px;
    padding-top: 0px;
}

#optionsContainer{
  display: flex;
  justify-content: space-evenly ;
  
}
#optionsContainer > div{
    flex-basis: 50%;
    text-align: center;
}
ul{
    padding: 0;
}

li{
    list-style-type: none;
    margin: 0.5rem 0 0.5rem 0;
}
input{
    text-align: center;
}

input[type = text], #optionsLabel{
    width: 200px;
    display: inline-block;
    margin-right: 5px;
}
input[type = number]{
width: 3rem;
}

input[type = button]{
    background-color: blue;
    color: aliceblue;
    border-radius: 5px;
    border: solid blue 1px;
    padding: 5px;
    margin-left: 5px;
}


#outputContainer{
    text-align: center;
    font-size: 2rem;
}

.devider{
    width: 100%;
    border-bottom: solid black 1px;
    margin: 1rem 0 1rem 0;
}
.hidden{
    display: none;
}