在我的下面的代码段中,我有三个圆圈作为导航,圆圈是15px乘15px,容器是百分比,可以随时更改。
我使用margin-right作为百分比,只是猜测适当的值。我想知道的是,是否有一个公式来计算适当的边距,以便圆圈从头到尾均匀分布,动态以便我可以添加删除圆圈?
有没有更好的解决方案,我尝试过flex-box但是我无法让它工作。
ul {
margin: 0;
padding: 0
}
.guide-bar {
position: relative;
}
.guide-bar:before {
content: "";
position: absolute;
height: 1px;
top: 7px;
width: 100%;
background-color: #303B44;
color: #303B44;
z-index: -1;
}
.guide-bar ul li {
background-color: #fff;
cursor: pointer;
position: relative;
list-style: none;
display: inline-block;
width: 15px;
height: 15px;
border: 2px solid;
border-radius: 100em;
margin-right: 39.56666%;
}
.guide-bar ul li:last-child {
margin-right: 0;
}
.guide-bar ul li.active:before {
content: "";
position: absolute;
height: 5px;
width: 5px;
background-color: #2AA1FA;
border-radius: 100em;
margin: auto;
left: 0px;
right: 0;
top: 0;
bottom: 0;
}
.guide-bar ul li.active:after {
content: "";
position: absolute;
height: 25px;
width: 25px;
border: 1px solid #2AA1FA;
border-radius: 100em;
margin: auto;
left: -7px;
right: 0;
top: 0;
z-index: -1;
bottom: 0;
}
.guide-bar ul li.watched {
color: #4bd495;
background: #4bd495;
}
<div style="width: 50%">
<div class="guide-bar" style="top: -5px;">
<ul>
<li id="intro" data-step="" class="active"></li>
<li id="howTo"></li>
<li id="conclusion"></li>
</ul>
</div>
</div>
答案 0 :(得分:1)
您可以使用此技术对齐内联块元素:"text-align: justify;" inline-block elements properly?
此外,您可以在顶部和左侧使用百分比,然后在此规则.guide-bar ul li.active:after
上使用负边距顶部和边距左边使其从中心对齐
另外,对于绘制带有border-radius的圆,请将其设置为50%...
看看这里:http://jsfiddle.net/2vcuxt4k/2/
.guide-bar ul {
text-align: justify;
}
.guide-bar ul:before {
content: '';
display: block;
width: 100%;
}
.guide-bar ul:after {
content: '';
display: inline-block;
width: 100%;
}
.guide-bar ul li.active:before {
content: "";
position: absolute;
height: 5px;
width: 5px;
background-color: #2AA1FA;
border-radius: 50%;
top: 50%;
left: 50%;
margin-top: -2.5px;
/* half the size of the circle, including the border */
margin-left: -2.5px;
}
.guide-bar ul li.active:after {
content: "";
position: absolute;
height: 25px;
width: 25px;
border: 1px solid #2AA1FA;
border-radius: 50%;
z-index: -1;
top: 50%;
left: 50%;
margin-top: -13.5px;
/* half the size of the circle, including the border */
margin-left: -13.5px;
}