移动端超级好用的reset.css（只做参考哦具体以你们实际项目需求为准）

html { color: #333;
    /*规定主色调,依据业务场景(非必须)*/ background: #F6F6F6;
    /*规定主背景,依据业务场景(非必须)*/ overflow-y: auto;
    /*如果有溢出自动形成滚动条*/ -webkit-text-size-adjust: 100%;
    /*不想让iPhone横坚屏切换的时候调节文字*/ -ms-text-size-adjust: 100%;
} html * { /*所有元素*/ outline: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); /*去除移动端开发点击事件灰色背景如a标签*/
} body,html{ height: 100%;
} article, aside, blockquote, body, button, code, dd, details, div, dl, dt, fieldset, figcaption, figure, footer, form, h1, h2, h3, h4, h5, h6, header, hgroup, hr, input, legend, li, menu, nav, ol, p, pre, section, td, textarea, th, ul { margin: 0; padding: 0;
} input, select, textarea { font-size: 100%;
} table { border-collapse: collapse; border-spacing: 0;
} fieldset, img { border: none;
} address, caption, cite, code, dfn, em, th, var { font-style: normal; font-weight: 500;
} ol, ul { list-style: none;
} h1, h2, h3, h4, h5, h6 { font-size: 100%; font-weight: 500;
} q:after, q:before {  /*在<q></q>标签之间的文字两头加上引号*/ content: '';
} a{ text-decoration: none;
}

/*input*/ button { border: none;
} button, html input[type='button'], input[type='reset'], input[type='submit'] { -webkit-appearance: button;  /*渲染成button的风格*/ text-transform: none; outline: none;
} input::-webkit-input-placeholder, textarea::-webkit-input-placeholder { color: #999;  /*输入框提示语的字体样式*/
} input::-webkit-inner-spin-button {/*解决input的type="number"在部分手机端会出现一个小按钮*/ -webkit-appearance: none;/*去除系统默认appearance的样式,常用于IOS下移除原生样式*/
} input::-webkit-outer-spin-button {/*解决input的type="number"在部分手机端会出现一个小按钮*/ -webkit-appearance: none;
} textarea { vertical-align: top;
} button, input { line-height: normal;
} select { margin: 0; outline: 0;
} input.fixAKeyboard:focus, textarea.fixAndroidKeyboard:focus { -webkit-tap-highlight-color: rgba(255, 255, 255, 0); -webkit-user-modify: read-write-plaintext-only;
} input:-webkit-autofill { -webkit-box-shadow: 0 0 0 1000px white inset !important;
} button, input[type=button], input[type=checkbox], input[type=reset], input[type=submit], label { cursor: pointer; user-select: none; -ms-user-select: none; -moz-user-select: none; -webkit-user-select: none;
} input[type=submit] { -webkit-user-modify: read-plaintext-only; -moz-user-modify: read-plaintext-only; -ms-user-modify: read-plaintext-only; -o-user-modify: read-plaintext-only; user-modify: read-plaintext-only;
} input[type='search']::-webkit-search-cancel-button, input[type='search']::-webkit-search-decoration { -webkit-appearance: none;
} input[type='search'] { -webkit-box-sizing: content-box; -moz-box-sizing: content-box; box-sizing: content-box; -webkit-appearance: textfield;
}


/*flex box*/ .flex { display: box;
    /* OLD - Android 4.4- */ display: -webkit-box;
    /* OLD - iOS 6-, Safari 3.1-6 */ display: -moz-box;
    /* OLD - Firefox 19- (buggy but mostly works) */ display: -ms-flexbox;
    /* TWEENER - IE 10 */ display: -webkit-flex;
    /* NEW - Chrome */ display: flex; -webkit-box-lines: multiple; -webkit-flex-wrap: wrap; -moz-flex-wrap: wrap; -ms-flex-wrap: wrap; -o-flex-wrap: wrap; flex-wrap: wrap;
} .justify-between { -webkit-box-pack: justify; -webkit-justify-content: space-between; -ms-flex-pack: justify; justify-content: space-between;
} .justify-center { -webkit-box-pack: center; -webkit-justify-content: center; -ms-flex-pack: center; justify-content: center;
} .vertical { -webkit-box-orient: vertical; -webkit-box-direction: normal; -webkit-flex-direction: column; -ms-flex-direction: column; flex-direction: column;
} *, *:before, *:after { box-sizing: border-box; /*所有元素以border开始计算盒子大小*/
} .clearfix:after, .clearfix:before {   /*清除浮动*/ content: " "; display: table;
} .clearfix:after { clear: both;
} .fl { float: left;
} .fr { float: right;
}

百分比布局，也叫做流式布局；
清除移动端默认的点击高亮效果：-webkit-tap-highlight-color:transparent;
base.css:
*,::before,::after{
padding:0;
margin:0;
-webkit-box-sizing:border-box; //主流浏览器做兼容；
box-sizing:border-box;
}

input{
border:none;
outline:none;
-webkit-appearance;//清除移动端默认的表单样式；如内阴影效果；
}

布局时候搜索框包一个form可以实现小键盘的箭头变为搜索二字；