@media screen and (max-width: 500px) {
	#side {
		display: none;
	}

	body {
		min-width: auto;
	}

	#mainContent.right {
		width: auto;
		float: none;
	}

	.key-point{
		padding: 0;
	}

	#firefox-notes #main-content h3,
	#firefox-notes #main-content .section-contents ul,
	#thunderbird-notes #main-content h3,
	#thunderbird-notes #main-content .section-contents ul,
	#side section, section .appendix {
		padding-left: 15px;
		padding-right: 15px;
	}

	#firefox-notes #main-content .section-contents li,
	#thunderbird-notes #main-content .section-contents li {
		padding-left: 0;
	}

	#firefox-notes .tag,
	#thunderbird-notes .tag {
		width: 60px;
		padding: 0 10px 0 30px;
		min-width: inherit;
		border-radius: 2px;
		position: static;
		margin-right: 10px;
	}

	.key-point {
		height: auto;
	}

	#product-desc,
	#product-desc.firefox-releasenotes-v4 {
		width: auto !important;
		margin: 0;
		background: #E4ECEC;
		padding: 10px !important;
	}

	#product-desc p{
		margin: 20px 10px;
		padding: 0;
	}

	#product-desc[class^=firefox-releasenotes]:before,
	#product-desc[class^=thunderbird-releasenotes]:before{
		display: block;
		font-size: 1.5em;
		padding: 0 10px;
		font-weight: 700;
		margin-top: 20px;
	}

	#product-desc[class^=firefox-releasenotes]:before{
		content: "Firefox 版本資訊";
	}

	#product-desc[class^=thunderbird-releasenotes]:before{
		content: "Thunderbird 版本資訊";
	}

	/* thunderbird */
	#mBody {
		background: none;
	}

	#main-feature {
		padding: 20px 15px;
	}

	#main-feature p {
		padding-right: 0;
	}

}