#div_btn_inner{ /*按钮部分内层，用于定位*/
    color:white; 
    text-shadow:1px 1px 1px #000;            
    width: 500px;
    padding-left: 430px;
}

.div_btn {
    position: fixed;
    cursor: pointer;  
    width: 42px; 
    height: 42px;
    border: 2px solid white;
    border-radius: 50%; 
    font-size: 1em;
    line-height: 40px;
    text-align: center; 
    z-index:999;
} 
#div_music {
    border: none;
    top: 30px; 
}
#div_record {
    /*top: 100px;*/
    bottom: 8.5rem;
right: 18px;
    background-color: rgba(0, 0, 0, 0.5);
}
#div_support{ 
   bottom: 4rem;
right: 18px;
    background-color: rgba(0, 0, 0, 0.3);
}        

.div_music_tips{  
    position: fixed;
    top: 70px; 
    z-index:999;
}
.div_record_tips{  
    position: fixed;
    top: 140px;
    z-index:999;
}

.div_btn_big {
    position: fixed;
    cursor: pointer; 
    width: 52px; 
    background-color: rgba(112,128,144, 0.6); 
    border-radius: 5px; 
    padding: 10px 0px;
    font-size: 1.1em;
    line-height: 1.3em;
    text-align: center; 
    z-index:999;
}
#div_s_upload {
    top: 360px;
}
#div_s_sound {
    top: 440px;
}
#div_s_choose {
    top: 520px;
}
#div_s_qa {
    top: 600px;
}

@-webkit-keyframes music_play_rotate{
    0%{
        -webkit-transform:rotate(0deg);
    }
    100%{
        -webkit-transform:rotate(360deg);
    }
}
@-webkit-keyframes btn_rotate{ /*帮助按钮的动画*/
    0%  {
        -webkit-transform:rotate(0deg);
    }
    40% {
        -webkit-transform:rotate(0deg);
    }
    50% {
        -webkit-transform:rotate(30deg);
    }
    60% {
        -webkit-transform:rotate(0deg);
    }
    70% {
        -webkit-transform:rotate(30deg);
    }
    80% {
        -webkit-transform:rotate(0deg);
    }
    100% {
        -webkit-transform:rotate(0deg);
    }
}
.left1 {
    position: fixed;
    cursor: pointer;  
    width: 42px; 
    height: 42px;
    border: 2px solid white;
    border-radius: 50%; 
    font-size: 1em;
    line-height: 40px;
    text-align: center; 
    z-index:999;
} 

#left1_inner{ /*按钮部分内层，用于定位*/
    color:white; 
    text-shadow:1px 1px 1px #000;            
    width: 500px;
    
    right: 18px;
}