style.css

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@200;900&display=swap');


*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
    font-family: 'Monteserrat', sans-serif;
    font-weight: 100;
}
header{
    position: relative;
    bottom: 10px;
}
h1{
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 60px;
    position: relative;
    bottom: 20px;
}
.para{
    font-size: 20px;
    
}
#form{
    min-height: 450px;
    min-width: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-evenly;
}
input[type='range']{
    min-width: 350px;
}
#arrowBtn, #inputDisplay{
    text-align: center;
}
#minus1, #plus1{
    margin: 30px 20px 10px 20px;
    font-size: 70px;
    width: 80px;
    height: 80px;
    border: 1px solid #000;
    border-radius: 50%;
    background-color: transparent;
}
#minus1 p, #plus1 p{
    transform: translateY(-10%);
}
#inputDisplay{
    font-size: 150px;
}
#lives{
    
}
#submit{
    height: 40px;
    width: 80px;
    border: 1px solid #000;
    border-radius: 10%;
    background-color: transparent;
    margin-top: 20px;
}
#results{
    width: 100px;
    height: 80px;
    background-color: antiquewhite;
}
.modal-bg{
    position: fixed;
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s, opacity 0.5s;
}
.modal-on{
    visibility: visible;
    opacity: 1;
}
#modal{
    width: 200px;
    height: 100px;
    background-color: #eee;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}