body,button,input,select,textarea{
    font-family: "Hiragino Sans GB", "Helvetica Neue", Helvetica, STHeiTi, "Microsoft Yahei", sans-serif;
}

body, a {
    color: #333333;
}

a {
    cursor: pointer;
}

/*浮动*/
.fl {
    float: left;
}
.fr {
    float: right;
}

/*清除浮动*/
.clearfix:after{
    content:".";
    display:block;
    height:0;
    clear:both;
    visibility:hidden
}
.clearfix{
    *height:1%;
}

/*元素隐藏*/
.hide {
    display: none!important;
}

/* 过渡效果 */
.tt1 {
    transition: ease-in-out all 0.1s;
}
.tt2 {
    transition: ease-in-out all 0.2s;
}

/* placeholder样式 */
::-webkit-input-placeholder { /* WebKit browsers */
    color: #999;
}

::-moz-placeholder { /* Mozilla Firefox 19+ */
    color: #999;
}

:-ms-input-placeholder { /* Internet Explorer 10+ */
    color: #999;
}