Nivo Slider卡在浏览器的左侧

Question

当我将网页设置为对齐中心时，为什么我的nivo滑块左对齐。我把它放在80％宽且中心对齐的表格中，它在100％的情况下填充单元格，但仍然与浏览器的左侧对齐。

请不要告诉我不要使用桌子，我是业余爱好者，只需要这样做，所以我有一个管道网站。我不是从桌子改为div。

谢谢你们

CSS

.nivoSlider {
position: relative;
width: 100%;
height: auto;
overflow: hidden;
}
.nivoSlider img {
position:absolute;
top:0px;
left:0px;
max-width: none;
}
.nivo-main-image {
display: block !important;
position: relative !important; 
width: 100% !important;
}

.nivoSlider a.nivo-imageLink {
position:absolute;
top:0px;
left:0px;
width:100%;
height:100%;
border:0;
padding:0;
margin:0;
z-index:6;
display:none;
background:white; 
filter:alpha(opacity=0); 
opacity:0;
}

.nivo-slice {
display:block;
position:absolute;
z-index:5;
height:100%;
top:0;
}
.nivo-box {
display:block;
position:absolute;
z-index:5;
overflow:hidden;
}
.nivo-box img { display:block; }


.nivo-caption {
position:absolute;
left:0px;
bottom:0px;
background:#000;
color:#fff;
width:100%;
z-index:8;
padding: 5px 10px;
opacity: 0.8;
overflow: hidden;
display: none;
-moz-opacity: 0.8;
filter:alpha(opacity=8);
-webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
-moz-box-sizing: border-box;    /* Firefox, other Gecko */
box-sizing: border-box;         /* Opera/IE 8+ */
}
.nivo-caption p {
padding:5px;
margin:0;
}
.nivo-caption a {
display:inline !important;
}
.nivo-html-caption {
display:none;
}

.nivo-directionNav a {
position:absolute;
top:45%;
z-index:9;
cursor:pointer;
}
.nivo-prevNav {
left:0px;
}
.nivo-nextNav {
right:0px;
}
.nivo-controlNav {
text-align:center;
padding: 15px 0;
}
.nivo-controlNav a {
cursor:pointer;
}
.nivo-controlNav a.active {
font-weight:bold;
}