本文介绍了我使用纯CSS进行星级评分.如何默认评分值?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
评级系统运行良好，完全不使用js.我将评分存储在数据库中.
The rating system works fine and does not use js at all. I store the rating in the database.
如果我想更改评分并从数据库中获取评分，我应该对CSS进行哪些更改以显示存储的评分?
If I want to change the rating and retrieve the rating from the database, what changes to CSS I should make to show the stored rating?
例如，我之前曾对4星级产品进行过评分.单击编辑页面时，我看到它的评分为4星，仍然可以将其更改为1星或5星.
For example, I rated something by 4-star before. When I click to the edit page, I can see it's rated by 4 stars and still I can change it to 1-star or 5-star.
.star-rating {
font-size: 0;
white-space: nowrap;
display: inline-block;
width: 150px;
height: 30px;
overflow: hidden;
position: relative;
background: url('data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGxpbmsiIHg9IjBweCIgeT0iMHB4IiB3aWR0aD0iMjBweCIgaGVpZ2h0PSIyMHB4IiB2aWV3Qm94PSIwIDAgMjAgMjAiIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDIwIDIwIiB4bWw6c3BhY2U9InByZXNlcnZlIj48cG9seWdvbiBmaWxsPSIjREREREREIiBwb2ludHM9IjEwLDAgMTMuMDksNi41ODMgMjAsNy42MzkgMTUsMTIuNzY0IDE2LjE4LDIwIDEwLDE2LjU4MyAzLjgyLDIwIDUsMTIuNzY0IDAsNy42MzkgNi45MSw2LjU4MyAiLz48L3N2Zz4=');
background-size: contain;
}
.star-rating i {
opacity: 0;
position: absolute;
left: 0;
top: 0;
height: 100%;
width: 20%;
z-index: 1;
background: url('data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGxpbmsiIHg9IjBweCIgeT0iMHB4IiB3aWR0aD0iMjBweCIgaGVpZ2h0PSIyMHB4IiB2aWV3Qm94PSIwIDAgMjAgMjAiIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDIwIDIwIiB4bWw6c3BhY2U9InByZXNlcnZlIj48cG9seWdvbiBmaWxsPSIjRkZERjg4IiBwb2ludHM9IjEwLDAgMTMuMDksNi41ODMgMjAsNy42MzkgMTUsMTIuNzY0IDE2LjE4LDIwIDEwLDE2LjU4MyAzLjgyLDIwIDUsMTIuNzY0IDAsNy42MzkgNi45MSw2LjU4MyAiLz48L3N2Zz4=');
background-size: contain;
}
.star-rating input {
-moz-appearance: none;
-webkit-appearance: none;
opacity: 0;
display: inline-block;
width: 20%;
height: 100%;
margin: 0;
padding: 0;
z-index: 2;
position: relative;
}
.star-rating input:hover + i,
.star-rating input:checked + i {
opacity: 1;
}
.star-rating i ~ i {
width: 40%;
}
.star-rating i ~ i ~ i {
width: 60%;
}
.star-rating i ~ i ~ i ~ i {
width: 80%;
}
.star-rating i ~ i ~ i ~ i ~ i {
width: 100%;
}
::after,
::before {
height: 100%;
padding: 0;
margin: 0;
box-sizing: border-box;
text-align: center;
vertical-align: middle;
}<span class="star-rating col-sm-10">
<input type="radio" name="rating" value="1"><i></i>
<input type="radio" name="rating" value="2"><i></i>
<input type="radio" name="rating" value="3"><i></i>
<input type="radio" name="rating" value="4"><i></i>
<input type="radio" name="rating" value="5"><i></i>
</span>推荐答案
将 checked 属性添加到所需的 input :
<span class="star-rating col-sm-10">
<input type="radio" name="rating" value="1"><i></i>
<input type="radio" name="rating" value="2"><i></i>
<input type="radio" name="rating" value="3" checked><i></i>
<input type="radio" name="rating" value="4"><i></i>
<input type="radio" name="rating" value="5"><i></i>
</span>
您还需要添加此CSS
You will also need to add this CSS
.star-rating input:hover ~ input:checked + i {
opacity: 0;
}
.star-rating {
font-size: 0;
white-space: nowrap;
display: inline-block;
width: 150px;
height: 30px;
overflow: hidden;
position: relative;
background: url('data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGxpbmsiIHg9IjBweCIgeT0iMHB4IiB3aWR0aD0iMjBweCIgaGVpZ2h0PSIyMHB4IiB2aWV3Qm94PSIwIDAgMjAgMjAiIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDIwIDIwIiB4bWw6c3BhY2U9InByZXNlcnZlIj48cG9seWdvbiBmaWxsPSIjREREREREIiBwb2ludHM9IjEwLDAgMTMuMDksNi41ODMgMjAsNy42MzkgMTUsMTIuNzY0IDE2LjE4LDIwIDEwLDE2LjU4MyAzLjgyLDIwIDUsMTIuNzY0IDAsNy42MzkgNi45MSw2LjU4MyAiLz48L3N2Zz4=');
background-size: contain;
}
.star-rating i {
opacity: 0;
position: absolute;
left: 0;
top: 0;
height: 100%;
width: 20%;
z-index: 1;
background: url('data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGxpbmsiIHg9IjBweCIgeT0iMHB4IiB3aWR0aD0iMjBweCIgaGVpZ2h0PSIyMHB4IiB2aWV3Qm94PSIwIDAgMjAgMjAiIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDIwIDIwIiB4bWw6c3BhY2U9InByZXNlcnZlIj48cG9seWdvbiBmaWxsPSIjRkZERjg4IiBwb2ludHM9IjEwLDAgMTMuMDksNi41ODMgMjAsNy42MzkgMTUsMTIuNzY0IDE2LjE4LDIwIDEwLDE2LjU4MyAzLjgyLDIwIDUsMTIuNzY0IDAsNy42MzkgNi45MSw2LjU4MyAiLz48L3N2Zz4=');
background-size: contain;
}
.star-rating input {
-moz-appearance: none;
-webkit-appearance: none;
opacity: 0;
display: inline-block;
width: 20%;
height: 100%;
margin: 0;
padding: 0;
z-index: 2;
position: relative;
}
.star-rating input:hover ~ input:checked + i {
opacity: 0;
}
.star-rating input:hover + i,
.star-rating input:checked + i {
opacity: 1;
}
.star-rating i ~ i {
width: 40%;
}
.star-rating i ~ i ~ i {
width: 60%;
}
.star-rating i ~ i ~ i ~ i {
width: 80%;
}
.star-rating i ~ i ~ i ~ i ~ i {
width: 100%;
}
::after,
::before {
height: 100%;
padding: 0;
margin: 0;
box-sizing: border-box;
text-align: center;
vertical-align: middle;
}<span class="star-rating col-sm-10">
<input type="radio" name="rating" value="1"><i></i>
<input type="radio" name="rating" value="2"><i></i>
<input type="radio" name="rating" value="3" checked><i></i>
<input type="radio" name="rating" value="4"><i></i>
<input type="radio" name="rating" value="5"><i></i>
</span>或者，替换
.star-rating:hover input:checked + i
使用
.star-rating:not(:hover) input:checked + i
.star-rating {
font-size: 0;
white-space: nowrap;
display: inline-block;
width: 150px;
height: 30px;
overflow: hidden;
position: relative;
background: url('data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGxpbmsiIHg9IjBweCIgeT0iMHB4IiB3aWR0aD0iMjBweCIgaGVpZ2h0PSIyMHB4IiB2aWV3Qm94PSIwIDAgMjAgMjAiIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDIwIDIwIiB4bWw6c3BhY2U9InByZXNlcnZlIj48cG9seWdvbiBmaWxsPSIjREREREREIiBwb2ludHM9IjEwLDAgMTMuMDksNi41ODMgMjAsNy42MzkgMTUsMTIuNzY0IDE2LjE4LDIwIDEwLDE2LjU4MyAzLjgyLDIwIDUsMTIuNzY0IDAsNy42MzkgNi45MSw2LjU4MyAiLz48L3N2Zz4=');
background-size: contain;
}
.star-rating i {
opacity: 0;
position: absolute;
left: 0;
top: 0;
height: 100%;
width: 20%;
z-index: 1;
background: url('data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGxpbmsiIHg9IjBweCIgeT0iMHB4IiB3aWR0aD0iMjBweCIgaGVpZ2h0PSIyMHB4IiB2aWV3Qm94PSIwIDAgMjAgMjAiIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDIwIDIwIiB4bWw6c3BhY2U9InByZXNlcnZlIj48cG9seWdvbiBmaWxsPSIjRkZERjg4IiBwb2ludHM9IjEwLDAgMTMuMDksNi41ODMgMjAsNy42MzkgMTUsMTIuNzY0IDE2LjE4LDIwIDEwLDE2LjU4MyAzLjgyLDIwIDUsMTIuNzY0IDAsNy42MzkgNi45MSw2LjU4MyAiLz48L3N2Zz4=');
background-size: contain;
}
.star-rating input {
-moz-appearance: none;
-webkit-appearance: none;
opacity: 0;
display: inline-block;
width: 20%;
height: 100%;
margin: 0;
padding: 0;
z-index: 2;
position: relative;
}
.star-rating input:hover + i,
.star-rating:not(:hover) input:checked + i {
opacity: 1;
}
.star-rating i ~ i {
width: 40%;
}
.star-rating i ~ i ~ i {
width: 60%;
}
.star-rating i ~ i ~ i ~ i {
width: 80%;
}
.star-rating i ~ i ~ i ~ i ~ i {
width: 100%;
}
::after,
::before {
height: 100%;
padding: 0;
margin: 0;
box-sizing: border-box;
text-align: center;
vertical-align: middle;
}<span class="star-rating col-sm-10">
<input type="radio" name="rating" value="1"><i></i>
<input type="radio" name="rating" value="2"><i></i>
<input type="radio" name="rating" value="3" checked><i></i>
<input type="radio" name="rating" value="4"><i></i>
<input type="radio" name="rating" value="5"><i></i>
</span>这篇关于我使用纯CSS进行星级评分.如何默认评分值?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！