item { display: inline-block; width: 100px; text-align: center; cursor: pointer } .item a { color: #e5ff10; } .item:hover { background-color: #45ff35; }

这是一个 CSS 样式，用于设置一组元素的样式。其中，`.item` 是一个类选择器，表示选中所有 class 属性为 item 的元素，`display: inline-block` 表示将元素设置为行内块元素，`width: 100px` 表示设置元素的宽度为 100 像素，`text-align: center` 表示设置文本居中对齐，`cursor: pointer` 表示将鼠标指针设置为手型。而 `.item a` 表示选中所有 class 属性为 item 的元素内的 a 标签元素，`color: #e5ff10` 表示设置文本颜色为浅黄色。最后，`.item:hover` 表示当鼠标悬停在 class 属性为 item 的元素上时，应用背景色为亮绿色。

相关问题

.image-container { position: relative; display: inline-block; } .navigation-buttons { position: absolute; top: 50%; transform: translateY(-50%); width: 100%; text-align: center; } .prev-button, .next-button { background-color: #333; color: #fff; padding: 10px 20px; border: none; border-radius: 4px; margin: 0 10px; cursor: pointer; } .prev-button:hover, .next-button:hover { background-color: #555; } echo " <div class='image-container'> <img src='data:image/jpeg;base64,$show_image' alt='图片'> <div class='navigation-buttons'> <button class='prev-button'>上一张</button> <button class='next-button'>下一张</button> </div> </div> ";怎么使图片也居中显示

要让图片也居中显示，可以在 `.image-container` 中添加 `text-align: center;` 属性，这样图片就会水平居中显示了。修改后的 CSS 代码如下：

.image-container {
  position: relative;
  display: inline-block;
  text-align: center;
}

.navigation-buttons {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  text-align: center;
}

.prev-button,
.next-button {
  background-color: #333;
  color: #fff;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  margin: 0 10px;
  cursor: pointer;
}

.prev-button:hover,
.next-button:hover {
  background-color: #555;
}

这样就可以让图片和导航按钮同时居中显示了。

*{ margin: 0; padding: 0; } html,body{ height: 100%; } body{ width: 100%; background-image:radial-gradient(#22002a,#01001f) } a{ text-decoration: none; } #movie_info{ width: 990px; margin: 0 auto; padding-bottom: 60px; box-sizing: border-box; } #movie_info .info{ width: 100%; padding-bottom: 15px; border-bottom: 1px dotted rgb(255,255,255,0.3); } #movie_info .info img{ float: left; box-shadow: 0 0 6px #C4C4C4; margin-top: 36px; } table{ margin-top: 20px; margin-right: 10px; float: right; color: white; font-size: 13px; } table,tr,td,th{ border: none; } th{ font-size: 22px; text-align: left; height: 38px; line-height: 38px; color: #fdfed2; } td{ width: 240px; line-height: 24px; } table a{ display: block; width: 100px; height: 30px; line-height: 30px; border-radius: 5px; color: #FFFFFF; text-align: center; margin-top: 15px; } table .lookInfo{ background-image:linear-gradient(#9ac534,#427e22) ; } table .buy{ background-image:linear-gradient(#ff8b45,#ff5200) ; } table .score{ color: #f2a32e; } table .score .star{ margin-left: 15px; display: inline-block; width: 103px; height: 20px; background: url(../images/star_big.png) left -80px no-repeat; } table .score em{ font-size: 28px; color: #f2a32e; } #movie_info .info:after,#movie_info ul:after{ content: ""; display: block; clear: both; } /*猜你喜欢*/ #movie_info .like{ position: relative; } #movie_info .like span{ position: absolute; top: 10px; left: 25px; display: block; width: 100px; height: 30px; line-height: 30px; border-radius: 2px; background:rgb(220,216,216, 32%); color: #FFFFFF; text-align: center; font-size: 12px; } #movie_info .like ul{ width: 990px; height: 190px; position: absolute; top: 50px; left: 25px; overflow: hidden; } #movie_info .like ul:after{ content: ""; display: block; clear: both; } #movie_info .like li{ width: 119px; text-align: center; float: left; margin-right: 20px; font-size: 12px; color: #e1ab5b; line-height: 20px; cursor: pointer; } #movie_info .like li img{ width: 119px; height: 168px; }。每行代码加上注释

/* 设置页面样式 */
*{
margin: 0;
padding: 0;
}
html,body{
height: 100%;
}
body{
width: 100%;
background-image: radial-gradient(#22002a,#01001f); /* 设置背景颜色 */
}
a{
text-decoration: none;
}

/* 电影信息区域 */
#movie_info{
width: 990px;
margin: 0 auto;
padding-bottom: 60px;
box-sizing: border-box;
}

#movie_info .info{
width: 100%;
padding-bottom: 15px;
border-bottom: 1px dotted rgb(255,255,255,0.3); /* 设置下划线样式 */
}

#movie_info .info img{
float: left;
box-shadow: 0 0 6px #C4C4C4; /* 设置图片阴影 */
margin-top: 36px;
}

table{
margin-top: 20px;
margin-right: 10px;
float: right;
color: white;
font-size: 13px;
}

table,tr,td,th{
border: none;
}

th{
font-size: 22px;
text-align: left;
height: 38px;
line-height: 38px;
color: #fdfed2;
}

td{
width: 240px;
line-height: 24px;
}

table a{
display: block;
width: 100px;
height: 30px;
line-height: 30px;
border-radius: 5px;
color: #FFFFFF;
text-align: center;
margin-top: 15px;
}

table .lookInfo{
background-image:linear-gradient(#9ac534,#427e22); /* 设置按钮渐变背景颜色 */
}

table .buy{
background-image:linear-gradient(#ff8b45,#ff5200);
}

table .score{
color: #f2a32e;
}

table .score .star{
margin-left: 15px;
display: inline-block;
width: 103px;
height: 20px;
background: url(../images/star_big.png) left -80px no-repeat; /* 设置星星图标 */
}

table .score em{
font-size: 28px;
color: #f2a32e;
}

#movie_info .info:after,#movie_info ul:after{
content: "";
display: block;
clear: both;
}

/* 猜你喜欢区域 */
#movie_info .like{
position: relative;
}

#movie_info .like span{
position: absolute;
top: 10px;
left: 25px;
display: block;
width: 100px;
height: 30px;
line-height: 30px;
border-radius: 2px;
background:rgb(220,216,216, 32%);
color: #FFFFFF;
text-align: center;
font-size: 12px;
}

#movie_info .like ul{
width: 990px;
height: 190px;
position: absolute;
top: 50px;
left: 25px;
overflow: hidden;
}

#movie_info .like ul:after{
content: "";
display: block;
clear: both;
}

#movie_info .like li{
width: 119px;
text-align: center;
float: left;
margin-right: 20px;
font-size: 12px;
color: #e1ab5b;
line-height: 20px;
cursor: pointer;
}

#movie_info .like li img{
width: 119px;
height: 168px;
}