/* button初始化样式*/
button {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    -webkit-appearance: none;
    padding: 0;
    margin: 0;
    outline: none;
    border: none;
    border-radius: 0;
    background: transparent;
}
.btn {
    /*display: block;*/
    position: relative;
    color: #ffffff;
    font-size: 1rem;
    background: #0d88ee;
    border-radius: .4rem;
    text-align: center;
    margin: 0.2rem 0;
    padding: 0.5rem 0.6rem;
    -webkit-user-select: none; /*禁用手机浏览器的用户选择功能 */
    -moz-user-select: none;
}
.btn:active {
    /*top: 2px; 向下偏移2px*/
    top: 2px;
    /*padding-bottom: 9px;*/
    /*padding-left: 10px;*/
    /*padding-right: 10px;*/
    /*padding-top: 6px;*/

}
/*颜色扩展：http://www.w3school.com.cn/cssref/css_colornames.asp*/
.btnGreen {
    background: #05be65;
}
.btnRed {
    background: #bf1d03;
}
.btnBlack {
    background: Black;
}
.btnBlue {
    background: #1E90FF;
}
.btnMidnightBlue {
    background: #191970;
}
.btnYellow {
    background: #FFA500;
}
.btnPink {
    background: #FF1493;
}
.btnLightCoral{
    background: #F08080;
}
.btnSlateBlue{
    background: #8470FF;
}
.btnTeal{
    background: #008080;
}
.btnBrown{
    background: #A52A2A;
}
.btnIndigo{
    background: #4B0082;
}
.btnTm{
    font-size: 1.6rem;
    margin: 0.2rem 0;
    padding: 0.5rem 0.4rem;
    background: rgba(0, 0, 0, 0);
}
.btnTm:active {
    top: 0px;
}