기본 CSS 양식

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,font,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, header, article, section, aside, nav, figure, figcaption, textarea, input {
    margin:0;
    padding:0;
    vertical-align:baseline;
    background:transparent;
    box-sizing:border-box;
    -moz-box-sizing:border-box;
    -webkit-box-sizing:border-box;
}
header, footer, section, article, aside, nav, hgroup, details, menu, figure, figcaption {   display: block;}

{ -webkit-font-smoothing: antialiased; -webkit-text-size-adjust:none;}

html { height:100%;}

body {

/font-family:Nanum Gothic;/

font-family:"맑은 고딕", Malgun Gothic;

font-size:13px;

color:#000;

letter-spacing:-1px;

line-height:1;

}
a:link { color:#000; text-decoration:none;}

a:visited { color:#a7a7a7; text-decoration:none;}
select { font-size:100%; vertical-align:middle; background-color:#fff;}

select[disabled] { background-color: #ccc;}

select.invalidate { background-color:#fff1f1;}
input[type=submit] { border:0; cursor:pointer;}

input[type=checkbox] { -webkit-border-radius:1px;}

input[type=checkbox], input[type=radio]  {

width:14px;

height:14px;

margin-top:-2px;

vertical-align:middle;

}

input[type=file], input[type=text], input[type=password] {

padding-left:3px;

font-size:100%;

vertical-align:middle;

border:1px solid #aaa;

background-color:#fff;

-webkit-appearance: none;

-webkit-border-radius:0;

}

input[type=text]:focus, input[type=password]:focus {

background-color:#ecf9ff;

}

input[readonly],

input[disabled] {   background-color:#ccc;}
button {

border:0 none;

padding:0;

margin:0;

font-size:100%;

color:#000;

vertical-align:middle;

background:transparent;

cursor:pointer;

}

button::-moz-focus-inner {

margin: -1px;

padding: 0;

}
ul, ol {

list-style:none;

}
address,caption,cite,code,dfn,var,em {

font-style:normal;

font-weight:normal;

}
textarea {

width:100%;

padding:5px;

font-size:100%;

border:1px solid #aaa;

border-radius:0;

resize:none;

-webkit-appearance: none;

-webkit-border-radius:0;

}

textarea[disabled],

textarea[readonly]  {

background-color:#ccc;

}
fieldset,img {

border:0;

}
legend {

width:0;

height:0;

overflow:hidden;

margin:0;

padding:0;

visibility:hidden;

font-size:0;

line-height:0;

}
/* clear */

.clearfix::after { display:block; clear:both; visibility:hidden; height:0; content:'.';}

html .clearfix {

height:1%;

}

.hidden {

display:none;

}

.visible {

position:absolute;

top:-9999px;

width:0;

height:0;

overflow:hidden;

margin:0;

padding:0;

visibility:hidden;

font-size:0;

line-height:0;

}

/* Table */

caption {

width: 0;

height: 0;

overflow: hidden;

padding: 0;

visibility: hidden;

font-size: 0;

line-height: 0;

}

table {

width: 100%;

border-collapse: collapse;

border-spacing: 0;

empty-cells:show;

}

table th,

table td { vertical-align: middle;}

스팀잇에서는 글 작성 후 일주일 정도 지나면 수정이 불가능하다. 최신 코드는 여기에서 확인.