* {
    margin: 0;
    padding: 0;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
    box-sizing: border-box;
}

body {
    background: #3f4f44;
}

.app {
    background: #dcd7c9;
    width: 90%;
    max-width: 600px;
    margin: 100px auto 0;
    border-radius: 10px;
    padding: 30px;
}

.app h1 {
    font-size: 35px;
    color: #2C3930;
    font-weight: 600;
    padding-bottom: 30px;
    text-align: center;

}
.app h2{
    text-align: center;
    color: #2C3930;
}

.quiz {
    padding: 20px 0;
}

.quiz h2 {
    font-size: 18px;
    color: #2C3930
}

.btn {
    background: #d1b192;
    color: #2C3930;
    font-weight: 500;
    width: 100%;
    border: 1px solid #2C3930;
    padding: 10px;
    margin: 10px 0;
    text-align: left;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn:hover:not([disabled]) {
    background: #2C3930;
    color: white;
}

.btn:disabled{
    cursor: no-drop;
}

#next-btn {
    background: green;
    color: white;
    font-weight: 500;
    width: 150px;
    border: 0;
    padding: 10px;
    margin: 20px auto 0;
    border-radius: 4px;
    cursor: pointer;
    display: none;
}
.app p{
    text-align:left;
    color:#2C3930;
}

.correct {
    background: greenyellow;
}

.incorrect {
    background: red;
}