/*
 * 音声関連
*/
a.voiceagree {
    display: block;
    font-size: 1px;
    line-height: 1px;
    outline: none;
    text-indent: -9999px;
    overflow: hidden;
    width: 130px;
    height: 42px;
    background: transparent url("/images/voice/prebtn_se.png") left top no-repeat;
}
a.voiceagree:hover {
    /*background-position: -0 -21px;*/
    background-position: -0 -1px;
}
a.voiceagree:active {
    /*background-position: -0 -42px;*/
    background-position: -0 -1px;
}