html, body, div, span, applet, object, iframe,h1, h2, h3, h4, h5, h6, p, blockquote, pre,a, abbr, acronym, address, big, cite, code,del,
 dfn, em, img, ins, kbd, q, s, samp,small, strike, strong, sub, sup, tt, var,b, u, i, center,dl, dt, dd, ol, ul, li,fieldset, form, label, 
legend, table, caption, tbody, tfoot, thead, tr, th, td,article, aside, canvas, details, embed, figure, figcaption, 
footer, header, hgroup, menu, nav, output, ruby, section, summary,time, mark, audio, video {
	margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
	display: block;
}
body {
	line-height: 1;
}
ol, ul {
	list-style: none;
}
blockquote, q {
	quotes: none;
}
blockquote:before, blockquote:after,q:before, q:after {
	content: ''; content: none;
}
fieldset, hr {
     display: block; margin: 0; padding: 0; border: 0 none; 
}
input, select {
     max-width: 100%; vertical-align: middle; 
}
input, select, button, textarea, optgroup {
     margin: 0; font-family: inherit; font-size: inherit; color: inherit; 
}
a { color: inherit; text-decoration: none; }
button { padding: 0; border: 0 none; background: none; cursor: pointer; }
input[type='submit'] { -webkit-appearance: none; -moz-appearance: none; appearance: none; }
img {max-width: 100%; border: 0 none; font-size: 0; vertical-align: middle; }
select{ -moz-appearance:none; /* Firefox */  -webkit-appearance:none; /* Safari and Chrome */  appearance:none; }
select::-ms-expand { display:none; } 
table {border-collapse: collapse; border-spacing: 0; width: 100%;}
input::placeholder {color: #5f5f5f !important;/* 명도 대비를 만족하는 placeholder 색상 */}