skins/sam/tabview-skin.css

/* .yui-navset defaults to .yui-navset-top */
.yui3-skin-sam .yui3-tabview-list {
    border:solid #2647a0; /* color between tab list and content */
    border-width:0 0 5px;
    zoom:1;
}

.yui3-skin-sam .yui3-tab {
    margin:0 0.2em 0 0;
    padding:1px 0 0; /* gecko: make room for overflow */
    zoom:1;
}

.yui3-skin-sam .yui3-tab-selected {
    margin-bottom:-1px; /* for overlap (mapped to tabview-list border-width) */
}

.yui3-skin-sam .yui3-tab-label {
    background:#d8d8d8 url(../../../../assets/skins/sam/sprite.png) repeat-x; /* tab background */
    border:solid #a3a3a3;
    border-width: 1px 1px 0 1px;
    color:#000;
    cursor:pointer;
    font-size:85%;
    padding:0.3em .75em;
    text-decoration:none;
}

.yui3-skin-sam .yui3-tab-label:hover,
.yui3-skin-sam .yui3-tab-label:focus {
    background:#bfdaff url(../../../../assets/skins/sam/sprite.png) repeat-x left -1300px; /* hovered tab background */
    outline:0;
}

.yui3-skin-sam .yui3-tab-selected .yui3-tab-label,
.yui3-skin-sam .yui3-tab-selected .yui3-tab-label:focus,
.yui3-skin-sam .yui3-tab-selected .yui3-tab-label:hover { /* no hover effect for selected */
    background:#2647a0 url(../../../../assets/skins/sam/sprite.png) repeat-x left -1400px; /* selected tab background */
    color:#fff;
}

.yui3-skin-sam .yui3-tab-selected .yui3-tab-label {
    padding:0.4em 0.75em; /* raise selected tab */
}

.yui3-skin-sam .yui3-tab-selected .yui3-tab-label {
    border-color:#243356; /* selected tab border color */
}

.yui3-skin-sam .yui3-tabview-panel {
    background:#edf5ff; /* content background color */
}

.yui3-skin-sam .yui3-tabview-panel {
    border:1px solid #808080; /* content border */
    border-top-color:#243356; /* different border color */
    padding:0.25em 0.5em; /* content padding */
}