diff --git a/dist/example/example.css b/dist/example/example.css
index 5c2f34d1..10d795d0 100644
--- a/dist/example/example.css
+++ b/dist/example/example.css
@@ -1 +1 @@
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.page__intro-icon{margin-top:-.2em;margin-left:5px;width:16px;height:16px;vertical-align:middle}.page.home .page__title{font-size:0;margin-bottom:15px}.page.home .page__bd img{width:30px;height:30px}.page.home .page__bd li{margin:8px 0;background-color:#fff;overflow:hidden;border-radius:2px;cursor:pointer}.page.home .page__bd li.js_show .weui-flex{opacity:.5}.page.home .page__bd li.js_show .page__category{height:auto}.page.home .page__bd li.js_show .page__category-content{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}.page.home .page__bd li:first-child{margin-top:0}.page.home .page__category{height:0;overflow:hidden}.page.home .page__category-content{opacity:0;-webkit-transform:translateY(-50%);transform:translateY(-50%);-webkit-transition:.3s;transition:.3s}.page.home .weui-flex{padding:20px;-webkit-box-align:center;-webkit-align-items:center;align-items:center;-webkit-transition:.3s;transition:.3s}.page.home .weui-cells{margin-top:0}.page.home .weui-cells:after,.page.home .weui-cells:before{display:none}.page.home .weui-cell{padding-left:20px;padding-right:20px}.page.home .weui-cell:before{left:20px;right:20px}.page.form{padding:0}.page.form .weui-label{width:3.1em}.page.form_page .weui-label{width:4.1em}.page.form_select .weui-cells__group_form .weui-cell_select-before .weui-select{width:3.1em}.page.form_checkbox,.page.form_input_status,.page.form_radio,.page.form_select,.page.form_select_primary,.page.form_switch,.page.form_textarea,.page.form_vcode{padding:0}.page.form_input_status .weui-label,.page.form_select .weui-label,.page.form_select_primary .weui-label,.page.form_vcode .weui-label{width:3.1em}.page.button{background-color:#ededed}.page.button .weui-btn_mini{vertical-align:middle}.page.button .page__bd{padding:0}.page.button .button-sp-area{margin:15px auto;padding:15px;text-align:center}.page.button .button-sp-area.cell{padding:15px 0}.page.cell 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.icon-box__desc{margin-top:6px;font-size:12px;color:#888}.page.icons-svg .icon_sp_area,.page.icons .icon_sp_area{margin-top:10px;text-align:left}.page.icons-svg .icon_sp_area i:before,.page.icons .icon_sp_area i:before{margin-bottom:5px}.page.flex .placeholder{margin:5px;padding:0 10px;background-color:#f7f7f7;height:2.3em;line-height:2.3em;text-align:center;color:rgba(0,0,0,.3)}.page.loadmore{background-color:#fff}.page.layers{overflow-x:hidden;-webkit-perspective:1000px;perspective:1000px}@media only screen and (max-width:320px){.page.layers .page__hd{padding-left:20px;padding-right:20px}}.page.layers .page__bd{position:relative}.page.layers .page__desc{min-height:4.8em}.page.layers .layers__layer{position:absolute;left:50%;width:150px;height:266px;margin-left:-75px;box-sizing:border-box;-webkit-transition:.5s;transition:.5s;background:url(images/layers/transparent.gif) no-repeat 50%;background-size:contain;font-size:14px;color:#fff}.page.layers .layers__layer span{position:absolute;bottom:5px;left:0;right:0;text-align:center;-webkit-transition:.5s;transition:.5s}.page.layers .layers__layer:last-child span{color:#aaa}.page.layers .layers__layer.j_hide{opacity:0}.page.layers .layers__layer.j_pic span{color:transparent}@media only screen and (min-width:375px) and (min-height:603px){.page.layers .layers__layer{width:180px;height:320px;margin-left:-90px}}@media only screen and (min-width:414px) and (min-height:640px){.page.layers .layers__layer{width:200px;height:355px;margin-left:-100px}}.page.layers .layers__layer_popout{border:1px solid hsla(0,0%,80%,.5);z-index:4}.page.layers .layers__layer_popout.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(120px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(120px)}@media only screen and (max-width:320px){.page.layers .layers__layer_popout.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(140px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(140px)}}.page.layers .layers__layer_popout.j_pic{border-color:transparent;background-image:url(images/layers/popout.png)}.page.layers .layers__layer_mask{background-color:rgba(0,0,0,.5);z-index:3}.page.layers .layers__layer_mask.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(40px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(40px)}@media only screen and (max-width:320px){.page.layers .layers__layer_mask.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(80px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(80px)}}.page.layers .layers__layer_navigation{background-color:rgba(40,187,102,.5);z-index:2}.page.layers .layers__layer_navigation.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-40px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-40px)}@media only screen and (max-width:320px){.page.layers .layers__layer_navigation.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(20px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(20px)}}.page.layers .layers__layer_navigation.j_pic{background-color:transparent;background-image:url(images/layers/navigation.png)}.page.layers .layers__layer_content{background-color:#fff;z-index:1}.page.layers .layers__layer_content.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-120px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-120px)}@media only screen and (max-width:320px){.page.layers .layers__layer_content.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-40px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-40px)}}.page.layers .layers__layer_content.j_pic{background-image:url(images/layers/content.png)}.page.searchbar .searchbar-result{display:none;margin-top:0;font-size:14px}.page.searchbar .searchbar-result .weui-cell__bd{padding:2px 0 2px 20px;color:#666}.page.actionsheet,.page.picker{overflow:hidden}.page.picker{background-color:#fff}.page.gallery{overflow:hidden}.weui-half-screen-dialog{-webkit-transition:-webkit-transform .3s;transition:-webkit-transform .3s;transition:transform .3s;transition:transform .3s,-webkit-transform .3s;-webkit-transform:translateY(100%);transform:translateY(100%)}.weui-half-screen-dialog_show{-webkit-transform:translateY(0);transform:translateY(0)}@-webkit-keyframes a{0%{-webkit-transform:translate3d(100%,0,0);transform:translate3d(100%,0,0);opacity:0}to{-webkit-transform:translateZ(0);transform:translateZ(0);opacity:1}}@keyframes a{0%{-webkit-transform:translate3d(100%,0,0);transform:translate3d(100%,0,0);opacity:0}to{-webkit-transform:translateZ(0);transform:translateZ(0);opacity:1}}@-webkit-keyframes b{0%{-webkit-transform:translateZ(0);transform:translateZ(0);opacity:1}to{-webkit-transform:translate3d(100%,0,0);transform:translate3d(100%,0,0);opacity:0}}@keyframes b{0%{-webkit-transform:translateZ(0);transform:translateZ(0);opacity:1}to{-webkit-transform:translate3d(100%,0,0);transform:translate3d(100%,0,0);opacity:0}}.page.slideIn{-webkit-animation:a .2s forwards;animation:a .2s forwards}.page.slideOut{-webkit-animation:b .2s forwards;animation:b .2s forwards}@supports (top:constant(safe-area-inset-top)){.page{padding:constant(safe-area-inset-top) constant(safe-area-inset-right) constant(safe-area-inset-bottom) constant(safe-area-inset-left)}.page.navbar,.page.tabbar{padding-left:0;padding-right:0}.weui-tab__panel{padding-left:constant(safe-area-inset-left);padding-right:constant(safe-area-inset-right)}}@supports (top:env(safe-area-inset-top)){.page{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}.page.article,.page.msg_success,.page.msg_text,.page.msg_text_primary,.page.msg_warn,.page.navbar,.page.tabbar{padding:0}}
\ No newline at end of file
+body,html{height:100%;-webkit-tap-highlight-color:transparent}body{font-family:-apple-system-font,Helvetica Neue,Helvetica,sans-serif}ul{list-style:none}.page,body{background-color:#ededed}.page{box-sizing:border-box}.link{color:#07c160}.container{overflow:hidden}.container,.page{position:absolute;top:0;right:0;bottom:0;left:0}.page{overflow-y:auto;-webkit-overflow-scrolling:touch;opacity:0;z-index:1}.page.js_show{opacity:1}.page__hd{padding:40px}.page__bd_spacing{padding:0 16px}.page__ft{padding-top:40px;padding-bottom:10px;padding-bottom:calc(10px + constant(safe-area-inset-bottom));padding-bottom:calc(10px + env(safe-area-inset-bottom));text-align:center}.page__ft img{height:19px}.page__ft.j_bottom{position:absolute;bottom:0;left:0;right:0}.page__title{text-align:left;font-size:20px;font-weight:400}.page__desc{margin-top:4px;color:rgba(0,0,0,.5);text-align:left;font-size:14px}.weui-cell_example:before{left:52px}.page.progress{background-color:#fff}.page.home .page__intro-icon{margin-top:-.2em;margin-left:5px;width:16px;height:16px;vertical-align:middle}.page.home .page__title{font-size:0;margin-bottom:15px}.page.home .page__bd img{width:30px;height:30px}.page.home .page__bd li{margin:8px 0;background-color:#fff;overflow:hidden;border-radius:2px;cursor:pointer}.page.home .page__bd li.js_show .weui-flex{opacity:.5}.page.home .page__bd li.js_show .page__category{height:auto}.page.home .page__bd li.js_show .page__category-content{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}.page.home .page__bd li:first-child{margin-top:0}.page.home .page__category{height:0;overflow:hidden}.page.home .page__category-content{opacity:0;-webkit-transform:translateY(-50%);transform:translateY(-50%);-webkit-transition:.3s;transition:.3s}.page.home .weui-flex{padding:20px;-webkit-box-align:center;-webkit-align-items:center;align-items:center;-webkit-transition:.3s;transition:.3s}.page.home .weui-cells{margin-top:0}.page.home .weui-cells:after,.page.home .weui-cells:before{display:none}.page.home .weui-cell{padding-left:20px;padding-right:20px}.page.home .weui-cell:before{left:20px;right:20px}.page.form .weui-label{width:3.1em}.page.form_page .weui-label{width:4.1em}.page.form_select .weui-cells__group_form .weui-cell_select-before .weui-select{width:3.1em}.page.form_checkbox,.page.form_input_status,.page.form_page,.page.form_radio,.page.form_select,.page.form_select_primary,.page.form_switch,.page.form_textarea,.page.form_vcode{padding:0}.page.form_input_status .weui-label,.page.form_select .weui-label,.page.form_select_primary .weui-label,.page.form_vcode .weui-label{width:3.1em}.page.button{background-color:#ededed}.page.button .weui-btn_mini{vertical-align:middle}.page.button .page__bd{padding:0}.page.button .button-sp-area{margin:15px auto;padding:15px;text-align:center}.page.button .button-sp-area.cell{padding:15px 0}.page.cell .page__bd{padding-bottom:30px}.page.form{background-color:#fff}.page.form .page__bd{padding-bottom:30px}.page.actionsheet,.page.dialog{background-color:#fff}.page.dialog .page__bd{padding:0 15px}.page.msg,.page.msg_success,.page.msg_text,.page.msg_text_primary,.page.msg_warn,.page.toast{background-color:#fff}.page.panel .page__bd{padding-bottom:20px}.page.article{background-color:#fff}.page.icons,.page.icons-svg{text-align:center}.page.icons-svg .page__bd,.page.icons .page__bd{padding:0 40px;text-align:left}.page.icons-svg .icon-box,.page.icons .icon-box{margin-bottom:25px;display:-webkit-box;display:-webkit-flex;display:flex;-webkit-box-align:center;-webkit-align-items:center;align-items:center}.page.icons-svg .icon-box i,.page.icons .icon-box i{margin-right:18px}.page.icons-svg .icon-box__ctn,.page.icons .icon-box__ctn{-webkit-flex-shrink:100;flex-shrink:100}.page.icons-svg .icon-box__title,.page.icons .icon-box__title{font-weight:400}.page.icons-svg .icon-box__desc,.page.icons .icon-box__desc{margin-top:6px;font-size:12px;color:#888}.page.icons-svg .icon_sp_area,.page.icons .icon_sp_area{margin-top:10px;text-align:left}.page.icons-svg .icon_sp_area i:before,.page.icons .icon_sp_area i:before{margin-bottom:5px}.page.flex .placeholder{margin:5px;padding:0 10px;background-color:#f7f7f7;height:2.3em;line-height:2.3em;text-align:center;color:rgba(0,0,0,.3)}.page.loadmore{background-color:#fff}.page.layers{overflow-x:hidden;-webkit-perspective:1000px;perspective:1000px}@media only screen and (max-width:320px){.page.layers .page__hd{padding-left:20px;padding-right:20px}}.page.layers .page__bd{position:relative}.page.layers .page__desc{min-height:4.8em}.page.layers .layers__layer{position:absolute;left:50%;width:150px;height:266px;margin-left:-75px;box-sizing:border-box;-webkit-transition:.5s;transition:.5s;background:url(images/layers/transparent.gif) no-repeat 50%;background-size:contain;font-size:14px;color:#fff}.page.layers .layers__layer span{position:absolute;bottom:5px;left:0;right:0;text-align:center;-webkit-transition:.5s;transition:.5s}.page.layers .layers__layer:last-child span{color:#aaa}.page.layers .layers__layer.j_hide{opacity:0}.page.layers .layers__layer.j_pic span{color:transparent}@media only screen and (min-width:375px) and (min-height:603px){.page.layers .layers__layer{width:180px;height:320px;margin-left:-90px}}@media only screen and (min-width:414px) and (min-height:640px){.page.layers .layers__layer{width:200px;height:355px;margin-left:-100px}}.page.layers .layers__layer_popout{border:1px solid hsla(0,0%,80%,.5);z-index:4}.page.layers .layers__layer_popout.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(120px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(120px)}@media only screen and (max-width:320px){.page.layers .layers__layer_popout.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(140px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(140px)}}.page.layers .layers__layer_popout.j_pic{border-color:transparent;background-image:url(images/layers/popout.png)}.page.layers .layers__layer_mask{background-color:rgba(0,0,0,.5);z-index:3}.page.layers .layers__layer_mask.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(40px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(40px)}@media only screen and (max-width:320px){.page.layers .layers__layer_mask.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(80px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(80px)}}.page.layers .layers__layer_navigation{background-color:rgba(40,187,102,.5);z-index:2}.page.layers .layers__layer_navigation.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-40px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-40px)}@media only screen and (max-width:320px){.page.layers .layers__layer_navigation.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(20px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(20px)}}.page.layers .layers__layer_navigation.j_pic{background-color:transparent;background-image:url(images/layers/navigation.png)}.page.layers .layers__layer_content{background-color:#fff;z-index:1}.page.layers .layers__layer_content.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-120px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-120px)}@media only screen and (max-width:320px){.page.layers .layers__layer_content.j_transform{-webkit-transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-40px);transform:translateX(15px) rotateX(45deg) rotate(10deg) skew(-15deg) translateZ(-40px)}}.page.layers .layers__layer_content.j_pic{background-image:url(images/layers/content.png)}.page.searchbar .searchbar-result{display:none;margin-top:0;font-size:14px}.page.searchbar .searchbar-result .weui-cell__bd{padding:2px 0 2px 20px;color:#666}.page.actionsheet,.page.picker{overflow:hidden}.page.picker{background-color:#fff}.page.gallery{overflow:hidden}.weui-half-screen-dialog{-webkit-transition:-webkit-transform .3s;transition:-webkit-transform .3s;transition:transform .3s;transition:transform .3s,-webkit-transform .3s;-webkit-transform:translateY(100%);transform:translateY(100%)}.weui-half-screen-dialog_show{-webkit-transform:translateY(0);transform:translateY(0)}@-webkit-keyframes a{0%{-webkit-transform:translate3d(100%,0,0);transform:translate3d(100%,0,0);opacity:0}to{-webkit-transform:translateZ(0);transform:translateZ(0);opacity:1}}@keyframes a{0%{-webkit-transform:translate3d(100%,0,0);transform:translate3d(100%,0,0);opacity:0}to{-webkit-transform:translateZ(0);transform:translateZ(0);opacity:1}}@-webkit-keyframes b{0%{-webkit-transform:translateZ(0);transform:translateZ(0);opacity:1}to{-webkit-transform:translate3d(100%,0,0);transform:translate3d(100%,0,0);opacity:0}}@keyframes b{0%{-webkit-transform:translateZ(0);transform:translateZ(0);opacity:1}to{-webkit-transform:translate3d(100%,0,0);transform:translate3d(100%,0,0);opacity:0}}.page.slideIn{-webkit-animation:a .2s forwards;animation:a .2s forwards}.page.slideOut{-webkit-animation:b .2s forwards;animation:b .2s forwards}@supports (top:constant(safe-area-inset-top)){.page{padding:constant(safe-area-inset-top) constant(safe-area-inset-right) constant(safe-area-inset-bottom) constant(safe-area-inset-left)}.page.navbar,.page.tabbar{padding-left:0;padding-right:0}.weui-tab__panel{padding-left:constant(safe-area-inset-left);padding-right:constant(safe-area-inset-right)}}@supports (top:env(safe-area-inset-top)){.page{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}.page.article,.page.msg_success,.page.msg_text,.page.msg_text_primary,.page.msg_warn,.page.navbar,.page.tabbar{padding:0}}
\ No newline at end of file
diff --git a/src/example/example.less b/src/example/example.less
index e1d3f6d6..cc5eb9c2 100644
--- a/src/example/example.less
+++ b/src/example/example.less
@@ -182,7 +182,6 @@ body, .page {
 }
 
 .page.form{
-  padding:0;
   .weui-label{
     width:3.1em;
   }
@@ -200,6 +199,7 @@ body, .page {
   }
 }
 
+.page.form_page,
 .page.form_radio,
 .page.form_checkbox,
 .page.form_textarea,