使用bootstrap3开发响应式网站

本文实例为大家分享了bootstrap3响应式网站开发代码，供大家参考，具体内容如下

第一次使用bootstrap3，发现对移动支持得不错，可以很快的开发出一个支持移动和PC端的网站。

下面就是本文的实例，具体代码：

时间线来自国外网站，使用到的css如下

.timeline:before {
top: 0;
bottom: 0;
position: absolute;
content: " ";
width: 3px;
background-color: #eeeeee;
left: 50%;

margin-left: -1.5px;
}

.timeline > li {
margin-bottom: 20px;
position: relative;
}

.timeline > li:before,.timeline > li:after {
content: " ";
display: table;
}

.timeline > li:after {
clear: both;
}

.timeline > li:before,.timeline > li:after {
content: " ";
display: table;
}

.timeline > li:after {
clear: both;
}

.timeline > li > .timeline-panel {
width: 46%;
float: left;
border: 1px solid #d4d4d4;
border-radius: 2px;
padding: 20px;
position: relative;
-webkit-Box-shadow: 0 1px 6px rgba(0,0.175);
Box-shadow: 0 1px 6px rgba(0,0.175);

}

.timeline > li > .timeline-panel:before {
position: absolute;
top: 26px;
right: -15px;
display: inline-block;
border-top: 15px solid transparent;
border-left: 15px solid #ccc;
border-right: 0 solid #ccc;
border-bottom: 15px solid transparent;
content: " ";

}

.timeline > li > .timeline-panel:after {
position: absolute;
top: 27px;
right: -14px;
display: inline-block;
border-top: 14px solid transparent;
border-left: 14px solid #fff;
border-right: 0 solid #fff;
border-bottom: 14px solid transparent;
content: " ";
}

.timeline > li > .timeline-badge {
color: #fff;
width: 50px;
height: 50px;
line-height: 50px;
font-size: 1.4em;
text-align: center;
position: absolute;
top: 16px;
left: 50%;
margin-left: -25px;
background-color: #999999;
z-index: 100;
border-top-right-radius: 50%;
border-top-left-radius: 50%;
border-bottom-right-radius: 50%;
border-bottom-left-radius: 50%;
}

.timeline > li.timeline-inverted > .timeline-panel {
float: right;
}

.timeline > li.timeline-inverted > .timeline-panel:before {
border-left-width: 0;
border-right-width: 15px;
left: -15px;
right: auto;
}

.timeline > li.timeline-inverted > .timeline-panel:after {
border-left-width: 0;
border-right-width: 14px;
left: -14px;
right: auto;
}

.timeline-badge.primary {
background-color: #2e6da4 !important;
}

.timeline-badge.success {
background-color: #3f903f !important;
}

.timeline-badge.warning {
background-color: #f0ad4e !important;
}

.timeline-badge.danger {
background-color: #d9534f !important;
}

.timeline-badge.info {
background-color: #5bc0de !important;
}

.timeline-title {
margin-top: 0;
color: inherit;
}

.timeline-body > p,.timeline-body > ul {
margin-bottom: 0;
}

.timeline-body > p + p {
margin-top: 5px;
}

@media (max-width: 767px) {
ul.timeline:before {
left: 40px;
}

ul.timeline > li > .timeline-panel {
width: calc(100% - 90px);
width: -moz-calc(100% - 90px);
width: -webkit-calc(100% - 90px);

}

ul.timeline > li > .timeline-badge {
left: 15px;
margin-left: 0;
top: 16px;
}

ul.timeline > li > .timeline-panel {
float: right;
}

ul.timeline > li > .timeline-panel:before {
border-left-width: 0;
border-right-width: 15px;
left: -15px;
right: auto;
}

ul.timeline > li > .timeline-panel:after {
border-left-width: 0;
border-right-width: 14px;
left: -14px;
right: auto;
}
}

<ul class="timeline">

heading">

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