用css3实现各种图标效果（1）

公共样式

应该说现在绝大多数公司的项目前端都是一团乱，不仅仅是js写的没有任何框架而言，css同样也是如此，导致项目如果要升级或者说有新的变更维护起来就特别困难。

最近领导决定花大时间整理一下css样式，用他的一句话来说就是为后来者造福。

首先我们在整理样式之前，必须得有一个自己团队的规范。

思考真的很重要，所谓的磨刀不误砍柴工，事实上也就是说你在做任何事情之前都要把大致的流程，大致的思路想清楚之后再动手，否则就可能做到一半发现这样不对，然后前面的工夫全白费了，这样启不是。。。

前面说了一堆费话，下面就简单点来介绍一下我整理的图标（全部用css来实现的）。

css没有继承、多态等，所以为了write less ,do more就不得不想尽各种方法（我们自己规定凡是公共的、组件级别的样式全部以u-开头）。

我这里因为写所有标签的样式名都是以u-icon开头，所以写了如下样式，这样的话所有的以u-icon开头的全部都应用了如下三个样式，你想如果你有100个u-icon的样式那就省去了你300行代码呀！

[class^="u-icon"]
{
    display: inline-block;
    color: #fff;
    vertical-align: middle;
}

手机上的切换标签

html代码如下：

    <span class="u-icon-toggle"><i></i></span>
    <span class="u-icon-toggle on"><i></i></span>

页面显示效果如下：

css样式代码：

/*手机上的切换标签*/
.u-icon-toggle
{
    position: relative;
    width: 60px;
    height: 30px;
    border-radius: 30px;
    box-shadow: 0 0 0 1px #e5e5e5;
}

.on.u-icon-toggle, .on .u-icon-toggle/*因为这里可能会在父元素上加on 也可能在子元素上加on  所以*/
{
    box-shadow: 0 0 0 1px #4089e8;
    background-color: #4089e8;
}

.u-icon-toggle i
{
    position: absolute;
    top:;
    left:;
    width: 30px;
    height: 30px;
    -webkit-box-shadow: 0 0 2px #bbb;
    border-radius: 100%;
    background-color: #fff;
    -webkit-transition: 300ms linear;
    -webkit-transform: translate3d(0,0,0);
}

.on.u-icon-toggle i, .on .u-icon-toggle i
{
    -webkit-transform: translate3d(30px,0,0);
}

中英切换标签样式

css样式代码：

/*中英切换toggle -*/
.u-icon-toggleEn
{
    position: relative;
    width: 46px;
    height: 22px;
    border-radius: 30px;
    background-color: #67a5e2;
    box-shadow: 0 0 1px 1px #67a5e2;
}

.u-icon-toggleEn i
{
    position: absolute;
    top:;
    left:;
    width: 22px;
    height: 22px;
    -webkit-box-shadow: 0 0 2px #bbb;
    border-radius: 100%;
    background-color: #fff;
    -webkit-transition: 300ms linear;
    -webkit-transform: translate3d(0,0,0);
}

.on.u-icon-toggleEn i
{
    -webkit-transform: translate3d(23px,0,0);
}

.u-icon-toggleEn .ch, .u-icon-toggleEn .en
{
    position: absolute;
    font-size: 12px;
    z-index:;
    line-height:22px;
}

.u-icon-toggleEn .ch
{
    left: 4px;
    color: #67a5e2;
}

.on.u-icon-toggleEn .ch
{
    color: #fff;
}

.u-icon-toggleEn .en
{
    right: 5px;
    color: #fff;
}

.on.u-icon-toggleEn .en
{
    color: #67a5e2;
}

html代码如下：

页面显示效果如下：

    <span class='u-icon-toggleEn'><span class='ch'>中</span><span class='en'>英</span><i></i></span>
    <span class='u-icon-toggleEn on'><span class='ch'>中</span><span class='en'>英</span><i></i></span>

各种点（空心点、实心点、蓝色点、橙色点）

html代码如下：

    <span class="u-icon-pointB cur"></span>
    <span class="u-icon-pointB"></span>
    <span class="u-icon-pointO"></span>
    <span class="u-icon-pointO cur"></span>

页面显示效果如下：

css样式代码：

.u-icon-pointB, .u-icon-pointO
{
    width: 6px;
    height: 6px;
    margin: 0 3px;
    border-radius: 100%;/*圆角为100%就实现圆的效果*/
    box-shadow: 0 0 0 1px #6bb5ff;
}
/*机票筛选界面橙色点icon*/
.u-icon-pointO
{
    background-color: #fff;
    box-shadow: 0 0 0 1px #ff5d1d;
}
/*蓝色点icon*/
.cur.u-icon-pointB,.cur .u-icon-pointB
{
    background-color: #6bb5ff;/*如果背景和boder颜色不一致  则为空心圆*/
}

.cur.u-icon-pointO,.cur .u-icon-pointO
{
    background-color: #ff5d1d;
}

箭头

html代码如下：

    <span class="u-icon-arr"></span>
    <span class="u-icon-arr u-icon-arrD"></span>
    <span class="u-icon-arr u-icon-arrU"></span>

页面显示效果如下：

css样式代码：

.u-icon-arr
{
    position: absolute;
    top: 50%;
    right: 15px;
    width: 8px;
    height: 8px;
    margin-top: -2px;
    border-style: solid;
    border-width: 2px 2px 0 0;
    border-color: #ababab;
    -webkit-transform-origin: 75% 25%;
    -webkit-transform: rotateZ(45deg);
    -webkit-transition: 100ms ease-in .1s;
    transition: 100ms ease-in .1s;
}
/*箭头朝底 down*/
.u-icon-arrD
{
    -webkit-transform: rotateZ(135deg);
}
/*箭头朝上 up*/
.u-icon-arrU
{
    -webkit-transform: rotateZ(-45deg);
}

航线

html代码如下：

    <span class="u-icon-line">
        <span class="u-icon-lineFltGray"></span>
    </span>    

    <span class="u-icon-line">
        <span class="u-icon-lineFltTransit">经停</span>
    </span>

页面显示效果如下：

css样式代码：

.u-icon-lineFltGray
{
    background: url(http://webresource.c-ctrip.com/ResCorpMobile/R1/img/flight-icons.png?20141224) no-repeat  0 -39px/45px 150px;
    width: 16px;
    height: 16px;
}
/*航线中中转icon*/
.u-icon-lineFltTransit
{
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    margin-left: -12px;
    padding-top: 5px;
    color: #2181f7;
    font-size: 10px;
    text-align: center;
}

    .u-icon-lineFltTransit em
    {
        position: absolute;
        top: -16px;
        width: 66px;
        margin-left: -21px;
        color: #666;
    }

    .u-icon-lineFltTransit::before
    {
        position: absolute;
        top:;
        left: 50%;
        width: 5px;
        height: 5px;
        margin-top: -2px;
        margin-left: -3px;
        border: 1px solid #2181f7;
        -webkit-border-radius: 5px;
        border-radius: 5px;
        content: "";
    }

两种不同方式实现的warning

html代码如下：

    <span class="u-icon-warningO">!</span>
    <span class="u-icon-warningB"></span>

页面显示效果如下：

css样式代码：

/*橙色warning icon*/
.u-icon-warningO
{
    position: absolute;
    top: 6px;
    left: 10px;
    width: 16px;
    height: 16px;
    line-height: 18px;
    border-radius: 100%;
    background: #ff9000;
    font-size: 13px;
    font-weight: bold;
    text-align: center;
}
/*蓝色warning tip icon*/
.u-icon-warningB
{
    position: relative;
    width: 20px;
    height: 20px;
    border-color: #ed8b85;
    border-radius: 100%;
    background-color: #56a2ed;
    font-size: 14px;
}

.u-icon-warningB:after
{
    position: absolute;
    top:;
    left: 6px;
    line-height: 1.5;
    font-weight: bold;
    font-size: 14px;
    content: 'i';
}

大小不一的radio

html代码如下：

    <span class="u-icon-radioLB on"></span>
    <span class="u-icon-radioLB off"></span>
    <span class="u-icon-radioSB"></span>
    <span class="u-icon-radioLO off"></span>
    <span class="u-icon-radioLO on"></span>

页面显示效果如下：

css样式代码：

.u-icon-radioLB, .u-icon-radioLO,.u-icon-radioSB
{
    position: relative;
    width: 24px;
    height: 24px;
    border-radius: 24px;
    -webkit-border-radius: 24px;
}
.u-icon-radioSB
{
    width: 18px;
    height: 18px;
    border-radius: 18px;
}

.u-icon-radioLO
{
    right: 1px;
    box-shadow: 0 0 1px #aaa;
    background-color: #f8f8f8;
}

.on .u-icon-radioLB,.on.u-icon-radioLB,.u-icon-radioSB
{
    background: #4288E3;
}
.u-icon-radioLB.off {
    background-color: #ECECEC;
}
.u-icon-radioLB.off::after {
    border-color: #999;
}
.u-icon-radioLO::before
{
    position: absolute;
    left: -15px;
    top: -10px;
    width: 50px;
    height: 40px;
    content: " ";
}

.on.u-icon-radioLO,.on .u-icon-radioLO
{
    width: 24px;
    height: 24px;
    border-radius: 24px;
    box-shadow: none;
    background-color: #ff5d1d;
}

.on.u-icon-radioLO::after,.on .u-icon-radioLO::after
{
    position: absolute;
    top: 3px;
    right: 3px;
    width: 14px;
    height: 7px;
    border-left: 2px solid #fff;
    border-bottom: 2px solid #fff;
    -webkit-transform: rotate(-45deg) translate(-3px,1px);
    transform: rotate(-45deg) translate(-3px,1px);
    content: " ";
}

.u-icon-radioLB::after,.u-icon-radioSB::after
{
    position: absolute;
    top: 4px;
    left: 8px;
    width: 6px;
    height: 10px;
    border-style: solid;
    border-color: #fff;
    border-width: 0 2px 2px 0;
    -webkit-transform: rotateZ(45deg);
    content: "";
}
.u-icon-radioSB::after
{
    top: 3px;
    left: 6px;
    width: 4px;
    height: 8px;
}

各种不同的checkbox

html代码如下：

    <span class="u-icon-checkboxO_filter"></span>
    <span class="u-icon-checkboxO_filter checked"></span>
    <span class="u-icon-checkboxO checked"></span>
    <span class="u-icon-checkboxO"></span>
    <span class="u-icon-checkboxB checked"></span>
    <span class="u-icon-checkboxB"></span>

页面显示效果如下：

css样式代码：

.u-icon-checkboxO
{
    position: absolute;
    top: 20px;
    right: 15px;
    width: 14px;
    height: 14px;
    border: 1px solid #dbdbdb;
    content: " ";
}

.checked.u-icon-checkboxO, .u-icon-radioSO.on,.checked .u-icon-checkboxO ,.on .u-icon-radioSO
{
    width: 15px;
    height: 15px;
    border: none;
    background-color: #ff5d1d;
}
/*小的橙色radio*/
.u-icon-radioSO.on,.on .u-icon-radioSO
{
    position: absolute;
    top: 20px;
    right: 16px;
    border-radius: 100%;
}

.checked.u-icon-checkboxO::after, .u-icon-radioSO.on:after,.checked .u-icon-checkboxO::after, .on .u-icon-radioSO:after
{
    position: absolute;
    content: '';
}

.u-icon-radioSO.on:after,.on .u-icon-radioSO:after
{
    left: 4px;
    top: 2px;
    width: 4px;
    height: 7px;
    border: 2px solid #fff;
    border-width: 0 2px 2px 0;
    -webkit-transform: rotate(45deg);
}

.u-icon-checkboxO.on::after,.on .u-icon-checkboxO::after
{
    width: 9px;
    height: 4px;
    top: 1px;
    right:;
    border-left: 1px solid #fff;
    border-bottom: 1px solid #fff;
    -webkit-transform: rotate(-40deg) translate(-3px,1px);
    transform: rotate(-40deg) translate(-3px,1px);
}

.u-icon-checkboxB
{
    position: relative;
    width: 19px;
    height: 19px;
    border: 1px solid #999;
}

.u-icon-checkboxB.checked,
.checked .u-icon-checkboxB
{
    border-color: #3e74b9;
}

.u-icon-checkboxB.checked::after,
.checked .u-icon-checkboxB::after
{
    position: absolute;
    top: 3px;
    left: 2px;
    width: 12px;
    height: 6px;
    border: 2px solid #3e74b9;
    border-width: 0 0 2px 2px;
    -webkit-transform: rotateZ(-45deg);
    -ms-transform: rotateZ(-45deg);
    content: "";
}

.u-icon-checkboxO_filter
{
    display: inline-block;
    width: 15px;
    height: 15px;
    border: 1px solid #fff;
    margin-left: 5px;
    vertical-align: text-bottom;
    position: relative;
}
.checked.u-icon-checkboxO_filter,.checked .u-icon-checkboxO_filter
{
    border-color: #e5a64c;
}
.checked.u-icon-checkboxO_filter::before,.checked .u-icon-checkboxO_filter::before
{
    width: 14px;
    height: 6px;
    content: " ";
    display: inline-block;
    border-left: 1px solid #e5a64c;
    border-bottom: 1px solid #e5a64c;
    -webkit-transform: rotate(-40deg) translate(7px,-4px);
    transform: rotate(-40deg) translate(7px,-4px);
    position: relative;
    z-index:;
}
.checked.u-icon-checkboxO_filter::after,.checked .u-icon-checkboxO_filter::after
{
    content: " ";
    width: 4px;
    height: 9px;
    display: inline-block;
    background-color: #3b4b58;
    position: absolute;
    top: -1px;
    right: -1px;
}

详情（也就是三横线）

html代码如下：

<span class="u-icon-detail"><i></i></span>

页面显示效果如下：

css样式代码：

.u-icon-detail
{
    width: 12px;
    height: 10px;
    padding: 19px 10px;
}

.u-icon-detail i
{
    display: block;
    position: relative;
    width: 12px;
    height: 2px;
    background-color: #ffa124;
}

.u-icon-detail i:before
{
    position: absolute;
    top: 4px;
    width: 12px;
    height: 2px;
    background-color: #ffa124;
    content: '';
}

.u-icon-detail i:after
{
    position: absolute;
    top: 8px;
    width: 7px;
    height: 2px;
    background-color: #ffa124;
    content: '';
}

未完待续（如果大家有更好的方法来实现，不用图片，可以麻烦与我交流一下，谢谢！）

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