MathExercice.css

html, body

{

    margin: 0;

    padding: 0;

    background: rgb(5, 5, 5);

}

body

{

    text-align: center;

    font-family: sans-serif;

    font-weight: 600;

    color: #fff;

}

.head

{

    width: 100%;

    font-size: 30px;

    background: rgb(30, 30, 30);

    padding-top: 20px;

    padding-bottom: 20px;

}

#calcul

{

    font-size: 30px;

    font-family: monospace;

    font-weight: 600;

}

input[type='number']

{

    padding: 10px;

    width: 20%;

    font-family: sans-serif;

    font-weight: 400;

    font-size: 25px;

    color: #fff;

    background: rgb(5, 5, 5);

    border: none;

    border-bottom: 3px solid rgb(30, 30, 30);

    margin: 10px;

}

input[type='button']

{

    padding: 10px;

    font-family: sans-serif;

    font-weight: 400;

    font-size: 18px;

    color: #fff;

    background: rgb(30, 30, 30);

    border: 3px solid rgb(30, 30, 30);

    border: none;

    outline: none;

}

button

{

    padding: 25px;

    font-family: sans-serif;

    font-weight: 400;

    font-size: 18px;

    color: #fff;

    background: rgb(30, 30, 30);

    border: 3px solid rgb(30, 30, 30);

    border: none;

    outline: none;

    margin: 0.5em;

}

table

{

    margin-left: auto; 

    margin-right: auto;

}

progress

{

    -webkit-appearance: none;

    appearance: none;

    width: 250px;

    height: 20px;

}

.level-lives

{

    font-size: 25px;

    font-weight: 500;

    font-family: sans-serif;

    margin-right: 8%;

}

#less-lives

{

    color: #ff0000;

    opacity: 0;

}

#next-level

{

    color: #adff2f;

    opacity: 0;

    margin-left: -8px;

}

@keyframes opAnimation

{

    from

    {

        opacity: 1;

    }

    to

    {

        opacity: 0;

    }

}

@keyframes oof

{

    from

    {

        color: rgb(255, 0, 0);

    }

    to

    {

        color: #fff;

    }

}

@keyframes win

{

    from

    {

        color: #adff2f;

    }

    to

    {

        color: #fff;

    }

}

.loose-msg

{

    top: 50%;

    left: 50%;

    transform: translate(-50%, -50%);

    position: absolute;

    padding: 12%;

    background: #ff0000;

    border: 5px solid #751717;

    border-radius: 50px;

    filter: grayscale(35%);

    display: none;

}

.loose-msg span

{

    font-size: 5em;

    font-family: monospace;

    font-weight: 600;

}