background:url(../images/but2.png)background-position:top right这种你可以这样写background:url(../images/but2.png) right no-repeat更好如果要行居中的话直接在no-repeat后面加个0px 不用去指明父框坐标原点
<ul class="tabs"><li>
<input type="radio" name="tabs" id="tab1" checked />
<label for="tab1">选项卡 1</label>
<div id="tab-content1" class="tab-content">
<p>选项卡内容 1</p>
</div>
</li>
<li>
<input type="radio" name="tabs" id="tab2" />
<label for="tab2">选项卡 2</label>
<div id="tab-content2" class="tab-content">
<p>选项卡内容 2</p>
</div>
</li>
</ul>
CSS样式如下：
* {
margin: 0
padding: 0
-webkit-box-sizing: border-box
-moz-box-sizing: border-box
box-sizing: border-box
}
body {
padding: 20px
text-align: left
font-family: Lato
color: #fff
background: #9b59b6
}
.tabs {
width: 650px
float: none
list-style: none
position: relative
margin: 80px 0 0 10px
text-align: left
}
.tabs li {
float: left
display: block
}
.tabs input[type="radio"] {
position: absolute
top: -9999px
left: -9999px
}
.tabs label {
display: block
padding: 14px 21px
border-radius: 2px 2px 0 0
font-size: 20px
font-weight: normal
text-transform: uppercase
background: #8e44ad
cursor: pointer
position: relative
top: 4px
-webkit-transition: all 0.2s ease-in-out
-moz-transition: all 0.2s ease-in-out
-o-transition: all 0.2s ease-in-out
transition: all 0.2s ease-in-out
}
.tabs label:hover {
background: #703688
}
.tabs .tab-content {
z-index: 2
display: none
overflow: hidden
width: 100%
font-size: 17px
line-height: 25px
padding: 25px
position: absolute
top: 53px
left: 0
background: #612e76
}
.tabs [id^="tab"]:checked + label {
top: 0
padding-top: 17px
background: #612e76
}
.tabs [id^="tab"]:checked ~ [id^="tab-content"] {
display: block
}
图片效果
