update alertsetting page style

sleep/pages/alertSetting/alertSetting.vue

@@ -453,7 +453,6 @@ export default {
     background-image: url('http://wdklmall.oss-cn-shenzhen.aliyuncs.com/mallgoods/goods/3C62AD507C8345D49AEB2AAD8F7584BB.png');
     background-size: 100% 100%;
     background-repeat: no-repeat;
-	height: 100%;
 
     .section_2 {
       padding-bottom: 1.25rem;