各ブラウザの共通化を図ることで、各ブラウザのCSSデフォルト設定をなくす。

以下のcssを、ファイルに貼り付ける。貼り付けたCSSファイルを、htmlでCSSファイルとしては最初に読み込むようにする。

    /**
     * YUI 3.5.0 - reset.css (http://developer.yahoo.com/yui/3/cssreset/)
     * http://cssreset.com
     * Copyright 2012 Yahoo! Inc. All rights reserved.
     * http://yuilibrary.com/license/
     */
    /*
    	TODO will need to remove settings on HTML since we can't namespace it.
    	TODO with the prefix, should I group by selector or property for weight savings?
    */
    html{
    	color:#000;
    	background:#FFF;
    }
    /*
    	TODO remove settings on BODY since we can't namespace it.
    */
    /*
    	TODO test putting a class on HEAD.
    		- Fails on FF.
    */
    body,
    div,
    dl,
    dt,
    dd,
    ul,
    ol,
    li,
    h1,
    h2,
    h3,
    h4,
    h5,
    h6,
    pre,
    code,
    form,
    fieldset,
    legend,
    input,
    textarea,
    p,
    blockquote,
    th,
    td {
    	margin:0;
    	padding:0;
    }
    table {
    	border-collapse:collapse;
    	border-spacing:0;
    }
    fieldset,
    img {
    	border:0;
    }
    /*
    	TODO think about hanlding inheritence differently, maybe letting IE6 fail a bit...
    */
    address,
    caption,
    cite,
    code,
    dfn,
    em,
    strong,
    th,
    var {
    	font-style:normal;
    	font-weight:normal;
    }
     
    ol,
    ul {
    	list-style:none;
    }
     
    caption,
    th {
    	text-align:left;
    }
    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
    	font-size:100%;
    	font-weight:normal;
    }
    q:before,
    q:after {
    	content:'';
    }
    abbr,
    acronym {
    	border:0;
    	font-variant:normal;
    }
    /* to preserve line-height and selector appearance */
    sup {
    	vertical-align:text-top;
    }
    sub {
    	vertical-align:text-bottom;
    }
    input,
    textarea,
    select {
    	font-family:inherit;
    	font-size:inherit;
    	font-weight:inherit;
    }
    /*to enable resizing for IE*/
    input,
    textarea,
    select {
    	*font-size:100%;
    }
    /*because legend doesn't inherit in IE */
    legend {
    	color:#000;
    }
    /* YUI CSS Detection Stamp */
    #yui3-css-stamp.cssreset { display: none; }