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做出hover的效果必须用到z-index两者之间的关系？z-inde值大小区别

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

main p:hover {
    background: #fff;
    z-index: 1;
}

用雪碧图制作图标时位置不准，无法调背景图的位置。

0

1

雪碧图 CSS Sprite 定位

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

 <div class="btn-group">
        <button type="button" class="btn btn-default">找雇主</button>
        <button type="button" class="btn btn-default">找护工</button>
    </div>
    <button class="map"></button>

css：
.map{
    position: absolute;
    top: 0.2rem;
    right: 0.3rem;
    width: 0.42rem;
    height:0.45rem;
    border: 0;
    background-size: 4.92rem 0.96rem;
    background: url(img.png) no-repeat;
    background-position:  -2.44rem 0;
    border: none;
    outline: none;
}

下拉框内设置option的文字居中问题

0

1

居中

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.lie1 {
    position: fixed;
    top: 4.4rem;
    width: 100%;
}
.lie2 {
    display: flex;
}
.lie3 {
    display: flex;
    flex: auto;
    height: 4rem;
}

.lie4 {
    width: 100%;
    outline: none;
    text-align-last: center;
}
.lie5 {
    border: none;
}

 <div class="lie1">
        <div class="lie2">
            <div class="lie3">
                   
                <select class="lie4">
                    <option selected>所在地</option>
                    <option>北京</option>
                    <option>上海</option>
                    <option>深圳</option>
                </select>
            
            </div>
            <div class="lie3">
                
                <select class="lie4">
                    <option selected>食宿</option>
                    <option>米饭</option>
                    <option>面条</option>
                    <option>馒头</option>
                </select>
            
            </div>
            <div class="lie3">
                   
                <select class="lie4 lie5">
                    <option selected>病人情况</option>
                    <option>轻微</option>
                    <option>中等</option>
                    <option>重症</option>
                </select>
            
            </div>
        </div>
    </div>

如何清除下拉框的滚动条，还能滑动，使其达到更美观。

0

1

通用通用

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

filterBox {
    margin-top: 4.4rem;
    display: flex;
    color: #999;
    border-bottom: 1px solid #e1e5e7;
}

.one-filter,
.two-filter,
.three-filter {
    width: 33.3%;
    height: 4rem;
    line-height: 4rem;
    font-size: 1.2rem;
    text-align: center;
    border-right: 1px solid #e1e5e7;
    position: relative;
    cursor: pointer;
}

.city,
.Roomboard,
.patient-situation {
    overflow: auto;
    min-width: 100%;
    height: 20rem;
    display: none;
    position: absolute;
    background-color: #fbf7f7;
    overflow: auto;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
}

.one-filter:hover .city,
.two-filter:hover .Roomboard,
.three-filter:hover .patient-situation {
    display: block;
}

在flex布局中，text-overflow：ellipsis不生效的问题

1

flex 页面显示

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

css代码
.txt2{
    width: 50%;
    overflow: hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
    margin-bottom: 1.3rem;
    margin-top: 1.3rem;
    font-size: 1.4rem;
}
.listtxt{
    position: relative;
    display: flex;
    padding-left: 1.5rem;
    flex-flow: column nowrap;
    justify-content: space-around;
    align-items: end;
    width: 100%;
    border-width: 0 0 1px 0;
    border-style: solid;
    border-color: #e1e5e7
}
html代码
<div class="listtxt">
<div class="txt2">
        <p>2015-7-5至2015-7-122015-7-5至2015-7-122015-7-5至2015-7-122015-7-5至2015-7-122015-7-5至2015-7-122015-7-5至2015-7-12</p>
    </div>
</div>

select 旁边小图标点击无效，不能使用lable解决

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

  <div class="Selectionlr"   >
     <form  action="">
      <i class="icon8 "></i>
        <select>
        <option selected>所在地</option>
            <option value="beijing">北京</option>
            <option value="shanghai">上海</option>
            <option value="guangzhou">广州</option>
             </select>
             
     </form>  
    </div>