nav .airwheel-E3-function-center div:last-child a.buy {
    padding: 0 15px;
    color: #fff;
    background: #44a8f2;
    border-radius: 0;
    height: 51px;
    line-height: 51px;
}
nav .airwheel-E3-function-center div:last-child a.buy:after {
    height: 0px; 
}

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(max-width:1200px){.airwheel-e6-three{background-size:140%;background-position:50% 0;}}@media screen and (max-width:800px){.airwheel-e6-three{background:url("../../../images/m.airwhel_e6_battery.jpg") no-repeat center;background-size:100%;background-position:0 0;height:931px;}}.airwheel-e6-four{width:100%;background:#fcfcfc;text-align:right;}.airwheel-e6-four:after{clear:both;display:block;content:"";}.airwheel-e6-four img{float:right;}@media screen and (max-width:800px){.airwheel-e6-four img{float:none;width:100%;}}.airwheel-e6-four .airwheel-E3-function-center div{position:absolute;text-align:left;width:350px;line-height:30px;top:150px;}.airwheel-e6-four .airwheel-E3-function-center div h2{margin-top:80px;}@media screen and (max-width:1100px){.airwheel-e6-four .airwheel-E3-function-center div{position:inherit;text-align:center;width:98%;margin:0 1%;top:0;padding-top:50px;}.airwheel-e6-four .airwheel-E3-function-center div ul:nth-child(2) li{display:inline-block;margin:10px;}.airwheel-e6-four .airwheel-E3-function-center div h2{margin-top:20px;}.airwheel-e6-four .airwheel-E3-function-center div p:before{margin:10px auto;}}.airwheel-e6-five{width:100%;background:url("../../images/airwheel_e6_seat-bg.jpg") repeat-x;color:#fff;overflow:hidden;}.airwheel-e6-five .airwheel-E3-function-center div{text-align:right;position:absolute;width:350px;right:0;padding-top:156px;}.airwheel-e6-five .airwheel-E3-function-center div p:before{margin-left:310px;background:#fff;}@media screen and (max-width:800px){.airwheel-e6-five .airwheel-E3-function-center div{padding-top:50px;position:inherit;width:80%;margin:0 1% 0 19%;}.airwheel-e6-five .airwheel-E3-function-center div p:before{margin-left:90%;width:10%;}.airwheel-e6-five img{width:140%;margin-left:-10%;}}.airwheel-e6-six{text-align:right;}.airwheel-e6-six:after{clear:both;display:block;content:"";}.airwheel-e6-six img{float:right;}@media screen and (max-width:800px){.airwheel-e6-six img{float:none;width:100%;}}.airwheel-e6-six .airwheel-E3-function-center div{text-align:left;position:absolute;width:350px;top:200px;z-index:2;}.airwheel-e6-six .airwheel-E3-function-center div h2{margin-top:140px;}@media screen and (max-width:800px){.airwheel-e6-six .airwheel-E3-function-center div{padding-top:40px;position:inherit;text-align:center;width:98%;margin:0 1%;}.airwheel-e6-six .airwheel-E3-function-center div h2{margin-top:40px;}.airwheel-e6-six .airwheel-E3-function-center div p:before{margin:10px auto;}}.airwheel-e6-last{color:#fff;width:100%;height:900px;overflow:hidden;background:url("../../../images/airwheel_e6_paint.jpg") no-repeat center;}.airwheel-e6-last .airwheel-E3-function-center{text-align:right;}.airwheel-e6-last .airwheel-E3-function-center div{width:350px;position:absolute;top:250px;right:0;}.airwheel-e6-last .airwheel-E3-function-center div p:before{margin-left:300px;background:#fff;}@media screen and (max-width:800px){.airwheel-e6-last{background:url("../../../images/m.airwheel_e6_paint.jpg") no-repeat center;background-size:100%;}.airwheel-e6-last .airwheel-E3-function-center div{top:0;padding-top:35%;width:65%;margin:0 1% 34% 0;}.airwheel-e6-last .airwheel-E3-function-center div p:before{margin-left:90%;width:10%;}}.airwheel-e6-function-three{width:100%;text-align:center;padding:80px 0 10px;overflow:hidden;}@media screen and (max-width:768px){.airwheel-e6-function-three{padding-top:20px;}}.airwheel-e6-function-three div:nth-child(1){width:458px;margin:10px auto;}.airwheel-e6-function-three div:nth-child(1) p:before{margin:15px auto;}@media screen and (max-width:768px){.airwheel-e6-function-three div:nth-child(1) p:before{margin:10px auto;}}@media screen and (max-width:414px){.airwheel-e6-function-three div:nth-child(1){width:80%;margin:10px 10%;}}@media screen and (max-width:1700px){.airwheel-e6-function-three img{width:100%;}}.airwheel-e6-function-four{width:100%;background:#f2f2f2;text-align:right;overflow:hidden;}@media screen and (max-width:1000px){.airwheel-e6-function-four .airwheel-E3-function-center{margin-left:-49%;}}.airwheel-e6-function-four div{text-align:left;position:absolute;top:20%;left:50%;margin-left:-600px;}@media screen and (max-width:1200px){.airwheel-e6-function-four div{top:10%;margin-left:-48%;}}@media screen and (max-width:768px){.airwheel-e6-function-four div{position:inherit;text-align:center;padding-top:20px;}}.airwheel-e6-function-four div p{width:450px;}@media screen and (max-width:768px){.airwheel-e6-function-four div p{width:80%;margin:0 10%;}.airwheel-e6-function-four div p:before{margin:10px auto;}}.airwheel-e6-function-four img{float:right;}@media screen and (max-width:1500px){.airwheel-e6-function-four img{width:100%;}}.airwheel-e6-function-four:after{clear:both;content:"";display:block;}.airwheel-e6-function-six{width:100%;background:url("../../../images/airwheel-e6-function-usb.jpg") no-repeat center;height:898px;color:#fff;}@media screen and (max-width:1230px){.airwheel-e6-function-six{background:url("../../../images/airwheel-e6-function-usb-1230.jpg") no-repeat center;background-size:100%;}}@media screen and (max-width:790px){.airwheel-e6-function-six{background:url("../../../images/airwheel-e6-function-usb-small.jpg") no-repeat center;background-size:100%;}}.airwheel-e6-function-six .airwheel-E3-function-center{padding-top:200px;}@media screen and (max-width:1200px){.airwheel-e6-function-six .airwheel-E3-function-center{padding-top:5%;}}.airwheel-e6-function-six .airwheel-E3-function-center p{width:450px;}@media screen and (max-width:760px){.airwheel-e6-function-six .airwheel-E3-function-center p{width:85%;line-height:20px;}}.airwheel-e6-function-six .airwheel-E3-function-center p:before{background:#fff;}.airwheel-e6-function-seven{width:100%;padding-bottom:20px;background:#f2f2f2;text-align:center;overflow:hidden;}@media screen and (max-width:920px){.airwheel-e6-function-seven{padding-bottom:100px;}}@media screen and (max-width:529px){.airwheel-e6-function-seven{padding-bottom:180px;}}.airwheel-e6-function-seven div{position:absolute;width:300px;left:50%;margin-left:-150px;bottom:20%;z-index:2;}@media screen and (max-width:920px){.airwheel-e6-function-seven div{width:70%;margin:0 15%;left:0;bottom:0;}.airwheel-e6-function-seven div p{margin-bottom:30px;}}.airwheel-e6-function-seven div p:before{margin:15px auto;}@media screen and (max-width:768px){.airwheel-e6-function-seven div p:before{margin:10px auto;}}.airwheel-e6-function-seven img{display:inline-block;}@media screen and (max-width:1730px){.airwheel-e6-function-seven img{width:100%;}}.airwheel-e6-function-last{width:100%;background:#0f0f0f;text-align:center;color:#fff;padding-bottom:30px;overflow:hidden;}.airwheel-e6-function-last img{display:inline-block;}@media screen and (max-width:800px){.airwheel-e6-function-last img{width:80%;}}.airwheel-e6-function-last p:before{margin:15px auto;background:#fff;}@media screen and (max-width:768px){.airwheel-e6-function-last p:before{margin:10px auto;}}@media screen and (max-width:800px){.airwheel-e6-function-last div:nth-child(1){padding-bottom:20px;}}.airwheel-e6-function-last div:nth-child(1) li{display:inline-block;vertical-align:middle;padding:0 20px;}@media screen and (max-width:800px){.airwheel-e6-function-last div:nth-child(1) li{padding:0;vertical-align:bottom;}.airwheel-e6-function-last div:nth-child(1) li:nth-child(2){margin-bottom:100px;}.airwheel-e6-function-last div:nth-child(1) li:nth-child(1),.airwheel-e6-function-last div:nth-child(1) li:nth-child(3){position:absolute;bottom:0;width:50%;text-align:center;}.airwheel-e6-function-last div:nth-child(1) li:nth-child(3){left:0;}.airwheel-e6-function-last div:nth-child(1) li:nth-child(1){right:0;}}.airwheel-e6-function-last div:nth-child(1) li h1{color:#00fffd;}.airwheel-e6-function-last div:nth-child(2) p{width:465px;margin:0 auto;}@media screen and (max-width:800px){.airwheel-e6-function-last div:nth-child(2) p{width:80%;margin:0 10%;}}l-e6-function-last div:nth-child(2) p{width:80%;margin:0 10%;}}v:nth-child(2) p{width:80%;margin:0 10%;}

@media screen and (max-width: 768px){
nav .airwheel-E3-function-center div:last-child{width:100%}
nav .airwheel-E3-function-center div:first-child {
    display: none;
}
nav .airwheel-E3-function-center div:last-child a.buy {
    padding:0 8px;
float:right;
margin-top:10px;
margin-right:0;
    height: 30px;
    line-height: 30px;
    border-radius: 10px;
    background: #44a8f2
}
}