#smile-quiz-container{max-width:600px;margin:auto;}
.quiz-tile{display:inline-block;margin:10px;padding:5px;border:2px solid #ccc;border-radius:8px;text-align:center;cursor:pointer;width:120px;}
.quiz-tile.selected{border-color:#0073aa;background:#f0f8ff;}
.quiz-tile img{max-width:100px;height:auto;display:block;margin:0 auto 5px;}
.quiz-radio{margin:5px 0;}
#quiz-nav{margin-top:20px;text-align:center;}
#quiz-nav button{margin:0 10px;}