*?{

				margin:?0;

				padding:?0;

			}

			.container{

				position:?relative;

				width:?600px;

				height:?300px;

				border:?1px?solid?red;

				margin:100px?auto;

			}

			.tabs?{

				position:?absolute;

				left:?0;

				bottom:?0;

				height:?50px;

				width:?100%;

				background-color:?rgba(0,?0,?0,?0.5);

			}

			.tabs?button?{

				width:?80px;

				height:?30px;

				text-align:?center;

			}

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