JSnippetデモ
上のみ:
-moz-box-shadow: inset 0 10px 10px -10px grey;
-webkit-box-shadow: inset 0 10px 10px -10px grey;
box-shadow: inset 0 10px 10px -10px grey;
下部のみ:
-moz-box-shadow: inset 0 -10px 10px -10px grey;
-webkit-box-shadow: inset 0 -10px 10px -10px grey;
box-shadow: inset 0 -10px 10px -10px grey;
上下のみ:
-moz-box-shadow: inset 0 10px 10px -10px grey,
inset 0 -10px 10px -10px grey;
-webkit-box-shadow: inset 0 10px 10px -10px grey,
inset 0 -10px 10px -10px grey;
box-shadow: inset 0 10px 10px -10px grey,
inset 0 -10px 10px -10px grey;
簡単な例
.shadow-top {
-moz-box-shadow: inset 0 10px 10px -10px grey;
-webkit-box-shadow: inset 0 10px 10px -10px grey;
box-shadow: inset 0 10px 10px -10px grey;
}
.shadow-bottom {
-moz-box-shadow: inset 0 -10px 10px -10px grey;
-webkit-box-shadow: inset 0 -10px 10px -10px grey;
box-shadow: inset 0 -10px 10px -10px grey;
}
.shadow-top-bottom {
-moz-box-shadow: inset 0 10px 10px -10px grey,
inset 0 -10px 10px -10px grey;
-webkit-box-shadow: inset 0 10px 10px -10px grey,
inset 0 -10px 10px -10px grey;
box-shadow: inset 0 10px 10px -10px grey,
inset 0 -10px 10px -10px grey;
}
div { display:inline-block; margin-right:15px; width:150px; height:100px; background:yellow; }
<div class='shadow-top'></div>
<div class='shadow-bottom'></div>
<div class='shadow-top-bottom'></div>