div.test-helper-wrapper { text-align: center; }
div.test-helper { display: inline-block; text-align: left; padding: 10px; color: #333; font-family: AppleSDGothicNeo-Regular,noto-demilight,Malgun Gothic,"\B9D1\C740   \ACE0\B515",dotum,"\B3CB\C6C0",sans-serif; max-width: 640px; }
div.test-helper > div { padding: 30px; border-radius: 3px; background-color: #FFF; margin: 15px 10px; }
div.test-helper > div input,
div.test-helper > div button { width: 100%; padding: 10px; margin: 5px 0; border: 0px; border-radius: 3px; outline: none; }
div.test-helper > div input[type=text] { box-sizing : border-box; border: 1px solid #AAA; }
/*div.test-helper > div button { background-color: #FFD500; width: 45%; margin: 2%}*/
div.test-helper > div button { background-color: #FFD500; width: 100%; margin: 0}
div.test-helper > div.title { text-align: center; font-size: 20px; }
div.test-helper > div span { font-weight: bold; }
div.test-helper > div p { color: #999; }