我有一个有3列的脚。我想要做的是将内容集中在网站的主体内。现在，所有内容都在相应的div中左对齐。我无法集中内容而无法使文本居中。
HashMap<String, String> complexHashMapObject = new HashMap<>();
Gson gsone = new Gson();
JsonObject res = gsone.toJsonTree(complexHashMapObject).getAsJsonObject();
footer#footer .dt-social {
text-align: left;
}
footer#footer a {
color: #fff;
}
footer#footer a:hover {
text-decoration: none;
border-bottom-width: 1px;
border-bottom-style: dotted;
border-bottom-color: rgba(255, 255, 255, 0.5);
}
footer#footer .widget_recent_entries ul li {
padding-left: 0;
}
footer#footer .widget_recent_entries ul li .icon {
display: none;
}
footer#footer #footer-left a {
border: 0;
}
footer#footer .widget_text ul {
padding-left: 0px;
}
footer#footer .widget_text ul .icon:before {
font-family: "fontello";
font-style: normal;
content: '\ea43';
margin-left: -20px;
width: 0;
}
footer#footer .widget_text ul li {
list-style: none;
/*border-bottom: 1px solid rgba(0, 0, 0, 0.3);*/
padding: 5px 0 5px 0px;
}
footer#footer .widget_text ul li:last-child {
border: none;
}
footer#footer .widget_text ul li i {
font-size: 17px;
}
footer#footer .widget_text ul .children {
margin-top: 5px;
margin-bottom: -5px;
padding: 0px;
}
footer#footer .widget_text ul .children li {
padding: 5px 0 5px 20px;
border: none;
}
footer#footer .widget_text ul.list-inline-icon li {
border: none;
padding: 0;
width: 30px;
height: 30px;
border: 1px solid rgba(255, 255, 255, 0.2);
-webkit-border-radius: 50%;
border-radius: 50%;
background-clip: padding-box;
background: none;
margin-right: .5em;
}
footer#footer .widget_text ul.list-inline-icon li a {
font-size: 30px;
color: #ffffff;
line-height: 0;
}
footer#footer .widget_text ul.list-inline-icon li a i {
line-height: 1.4em;
margin: 0;
}
footer#footer .widget_text ul.list-inline-icon li a:hover {
color: #ffffff;
}
footer#footer .widget_text ul.list-inline-icon li:hover {
color: #ffffff;
border: 1px solid #f16338;
background: #f16338;
}
footer#footer .sequence-twitter {
min-height: 180px;
}
footer#footer .owl-theme .owl-controls {
text-align: left;
}
footer#footer .owl-theme .owl-controls .owl-page span {
background-color: #f16338;
opacity: 1;
}
footer#footer .owl-theme .owl-controls .owl-page.active span {
background: none;
border: 2px solid #f16338;
}
footer#footer .widget_calendar a {
color: #f16338;
}
footer#footer .widget_calendar a:hover {
color: #b6340d;
}
footer#footer .widget_calendar #calendar_wrap {
border: 0px solid #bdc3c7;
padding: 20px;
}
footer#footer .widget_calendar #today {
background-color: #f16338;
}
footer#footer .widget_calendar .pad {
color: #515151;
}
footer#footer .widget_calendar th {
text-align: center;
line-height: 2;
}
footer#footer .widget_calendar td {
text-align: center;
line-height: 2;
}
footer#footer .widget_calendar thead th {
color: #f16338;
}
footer#footer .widget_search {
color: #ffffff;
}
footer#footer .widget_search .screen-reader-text {
display: none;
}
footer#footer .widget_search #searchsubmit {
display: none;
}
footer#footer .widget_search #s {
border-width: 1px;
border-style: solid;
padding: 5px 5px 5px 30px;
width: 100%;
background: none;
font-size: 0.8em;
color: #fff;
}
footer#footer .widget_search i {
padding: 5px 5px;
position: absolute;
}
footer#footer .dt_widget_portfolio_posts .post-item {
padding: 0px;
}
footer#footer .dt_widget_portfolio_posts .post-item figure {
-webkit-transform-style: preserve-3d;
-moz-transform-style: preserve-3d;
-ms-transform-style: preserve-3d;
-o-transform-style: preserve-3d;
transform-style: preserve-3d;
height: 85px;
width: 85px;
overflow: hidden;
}
footer#footer .dt_widget_portfolio_posts .post-item figure > div {
overflow: hidden;
}
footer#footer .dt_widget_portfolio_posts .post-item figure figcaption {
-webkit-transition: -webkit-transform 0.3s;
-moz-transition: transform 0.3s;
-o-transition: transform 0.3s;
-ms-transition: transform 0.3s;
background: rgba(39, 11, 3, 0.6);
opacity: 1;
background-clip: padding-box;
text-align: center;
height: 85px;
}
footer#footer .dt_widget_portfolio_posts .post-item figure figcaption a {
display: table;
display: block;
width: 100%;
height: 100%;
}
footer#footer .dt_widget_portfolio_posts .post-item figure:hover figcaption,
footer#footer .dt_widget_portfolio_posts .post-item figure.cs-hover figcaption {
-webkit-transform: translate(0, -100%);
-moz-transform: translate(0, -100%);
-ms-transform: translate(0, -100%);
-o-transform: translate(0, -100%);
transform: translate(0, -100%);
}
footer#footer .dt_widget_portfolio_posts .post-item figure .zoom-plus {
width: 100%;
height: 50px;
position: relative;
left: 0%;
display: table-cell;
text-align: center;
vertical-align: middle;
display: block;
}
footer#footer .dt_widget_portfolio_posts .post-item figure .zoom-plus::before,
footer#footer .dt_widget_portfolio_posts .post-item figure .zoom-plus::after {
top: 50%;
left: 50%;
}
footer#footer .dt_widget_portfolio_posts .post-item figure .zoom-plus::before {
content: '';
width: 20px;
height: 20px;
position: absolute;
display: block;
border-bottom: #fff solid 1px;
-webkit-transition: transform 0s;
-moz-transition: transform 0s;
-o-transition: transform 0s;
-ms-transition: transform 0s;
transition: transform 0s;
-webkit-transform: translate(-50%, 0);
-moz-transform: translate(-50%, 0);
-ms-transform: translate(-50%, 0);
-o-transform: translate(-50%, 0);
transform: translate(-50%, 0);
}
footer#footer .dt_widget_portfolio_posts .post-item figure .zoom-plus::after {
content: '';
width: 20px;
height: 20px;
position: absolute;
display: block;
border-left: #fff solid 1px;
-webkit-transition: transform 0s;
-moz-transition: transform 0s;
-o-transition: transform 0s;
-ms-transition: transform 0s;
transition: transform 0s;
-webkit-transform: translate(0, 50%);
-moz-transform: translate(0, 50%);
-ms-transform: translate(0, 50%);
-o-transform: translate(0, 50%);
transform: translate(0, 50%);
}
footer#footer .widget_tag_cloud .tagcloud .tag {
display: inline-table;
font-size: 12px;
background: none;
border-width: 1px;
border-style: solid;
padding: 8px 10px;
margin: 0 5px 5px 0;
}
footer#footer .widget_tag_cloud .tagcloud .tag a:hover {
color: #ffffff;
}
footer#footer .widget_tag_cloud .tagcloud .tag:hover {
background-color: #f16338;
}
footer#footer .widget_tag_cloud .tagcloud .tag:hover a {
color: #ffffff;
}
footer#footer .woocommerce.widget_product_tag_cloud .tagcloud .tag {
display: inline-table;
font-size: 12px;
background: none;
border-width: 1px;
border-style: solid;
padding: 8px 10px;
margin: 0 5px 5px 0;
}
footer#footer .woocommerce.widget_product_tag_cloud .tagcloud .tag a:hover {
color: #ffffff;
}
footer#footer .woocommerce.widget_product_tag_cloud .tagcloud .tag:hover {
background-color: #f16338;
}
footer#footer .woocommerce.widget_product_tag_cloud .tagcloud .tag:hover a {
color: #ffffff;
}
footer#footer .widget_categories {
font-size: 14px;
}
footer#footer .widget_categories select {
width: 95%;
border: 1px solid #bdc3c7;
padding: 5px;
color: #515151;
}
footer#footer .widget_categories a.select-target {
background: none;
}
footer#footer .widget_archive {
font-family: 'Dosis';
}
footer#footer .widget_archive li {
border-bottom: 1px solid #bdc3c7;
}
footer#footer .widget_archive select {
width: 95%;
border: 1px solid #bdc3c7;
padding: 5px;
color: #515151;
}
footer#footer .widget_archive a.select-target {
background: none;
}
footer#footer .widget_recent_comments a {
font-style: italic;
color: rgba(255, 255, 255, 0.4);
}
footer#footer .widget_recent_comments a:hover {
color: #f16338;
}
footer#footer .widget_recent_comments .comment-author {
/*color: @white;*/
}
footer#footer .widget_recent_comments li.recentcomments {
/*border-color: @footer-border-color;*/
}
footer#footer .dt_widget_tabs .nav-tabs li a {
background: none;
border-width: 1px;
border-style: solid;
}
footer#footer .dt_widget_tabs .nav-tabs li a:hover {
color: #ffffff;
background-color: #f16338;
}
footer#footer .dt_widget_tabs .nav-tabs li:hover {
background-color: #f16338;
}
footer#footer .dt_widget_tabs .nav-tabs li.active a {
background-color: #f16338;
border: 1px solid #f16338;
color: #ffffff;
}
footer#footer .dt_widget_tabs .nav-tabs li.active a:hover,
footer#footer .dt_widget_tabs .nav-tabs li.active a:focus {
color: #ffffff;
background-color: #f16338;
border: 1px solid #f16338;
border-top: 3px solid #f16338;
}
footer#footer .dt_widget_tabs .tab-pane {
overflow: hidden;
}
footer#footer .dt_widget_tabs .tab-pane .rowlist {
float: left;
width: 100%;
padding: 15px 0;
}
@media (max-width: 1200px) {
footer#footer .dt_widget_tabs .nav-tabs li {
display: block;
width: 100%;
}
}
footer#footer .dt_widget_accordion .btn-accordion {
position: absolute;
right: 30px;
margin-top: -25px;
color: #ffffff;
background-color: #f16338;
}
footer#footer .dt_widget_accordion .opened {
color: #f16338;
background-color: #ffffff;
}
footer#footer .dt_widget_accordion .panel {
margin-top: 10px !important;
border: none;
background: none;
}
footer#footer .dt_widget_accordion .panel:first-child {
margin-top: 0px !important;
}
footer#footer .dt_widget_accordion .panel-heading {
background: none;
color: #ffffff;
border-width: 1px;
border-style: solid;
-webkit-transition: background-color 0.8s;
-moz-transition: background-color 0.8s;
-o-transition: background-color 0.8s;
-ms-transition: background-color 0.8s;
transition: background-color 0.8s;
}
footer#footer .dt_widget_accordion .openedup {
color: #ffffff !important;
background-color: #f16338;
-webkit-transition: background-color 0.8s;
-moz-transition: background-color 0.8s;
-o-transition: background-color 0.8s;
-ms-transition: background-color 0.8s;
transition: background-color 0.8s;
}
footer#footer .dt_widget_accordion .panel-body {
margin-top: 10px;
border-width: 1px;
border-style: solid;
background: none;
}
footer#footer .woocommerce.widget_product_search #s {
border: 1px solid rgba(255, 255, 255, 0.4);
}
答案 0 :(得分：0)
你可以在那里使用很多代码。你能否提供一下你想要达到的目标？
但你错过了那里的第一排，这是肯定的。
<section class="container">
<div class="row">
<div class="col-md-12"></div>
</div>
</section>
这将默认为中心。