响应式CSS基本默认值及工具样式

/************
 * 页面样式
 ************/
/* ============
    基本默认值
 ============ */
html{
    font-size: 62.5%;
    color: #222;
}
::selection{
    background-color: #b3d4fc;
    text-shadow: none;
}
ul{
    margin: 0;
    padding: 0;
}
li{
    list-style: none;
}
/* ============
    工具样式
 ============ */

.center-block{
    display: block;
    margin-right: auto;
    margin-left: auto;
}
.pull-right{
    float: right !important;
}
.pull-left{
    float: left !important;
}
.text-right{
    text-align: right !important;
}
.text-left{
    text-align: left !important;
}
.text-center{
    text-align: center !important;
}
.hide{
    display: none !important;
}
.show{
    display: block !important;
}
.invisible{
    visibility: hidden;
}
.text-hide{
    font: 0/0 a;
    color: transparent;
    text-shadow: none;
    background-color: transparent;
    border: 0;
}
/*清除浮动*/
.clearfix:before,
.clearfix:after{
    content: " ";
    display: table;
}
.clearfix:after{
    clear: both;
}
/*移动端默认样式 IOS*/
input[type=button]{
  -webkit-appearance:none;
  outline:none
}