Edit in JSFiddle

<h1 class="shadow1">見出し１</h1>

* {
font-family: 'ヒラギノ角ゴ Pro W3','Hiragino Kaku Gothic Pro','メイリオ',Meiryo,'ＭＳ Ｐゴシック',sans-serif;
}

.shadow1 {
    color: #030;
    text-shadow: 1px 1px 0 #fff,
        1px -1px 0 #fff,
        -1px 1px 0 #fff,
        -1px -1px 0 #fff,
        3px 3px 3px #aaa,
        3px -3px 3px #aaa,
        -3px 3px 3px #aaa,
        -3px -3px 3px #aaa;
}