body {
	font-family: sans-serif;
	background-color: white;
	color: black;
}

div#lall {
    border: dashed 1px black;
    width: 500px;
}

div#border {
    border: solid 1px red;
}

span#a {
    width: 100%;
    border: solid 1px blue;
    display: inline;
    overflow: hidden;
}

span#b {
    border: solid 1px cyan;
}

span.content {
    width: 50%;
    float: left;
}