这是《CSS3 探索发现》系列文章的第二篇,分享一组闪亮的半透明 CSS3 按钮效果。CSS3 为网页设计引入了众多强大的新功能,让设计和开发人员能够轻松的创作出精美的界面效果。推荐阅读:《CSS3 探索发现系列一:一组梦幻般的 CSS3 动画按钮效果》
这些闪亮的按钮使用了两个 DIV 实现,一个是按钮主要部分,一个是用来显示光泽。下面是在线演示,很漂亮吧?把鼠标放在按钮上试试,有惊喜哦!(温馨提示:在 Chrome,Firefox 和 Safari 浏览器中效果最佳,如果无法显示请刷新页面或者访问链接:在线演示)
HTML 部分非常简单,代码如下:
<div class="button gray"><div class="shine"></div>Button</div> <div class="button blue"><div class="shine"></div>Button</div> <div class="button green"><div class="shine"></div>Button</div> <div class="button red"><div class="shine"></div>Button</div> <div class="button purple"><div class="shine"></div>Button</div> <div class="button orange"><div class="shine"></div>Button</div>
这些精美的效果用到了 CSS3 RGBA、box-shadow(阴影)、border-radius(边框圆角)和 linear-gradient(线性渐变),为了便于阅读,精简后的公共部分的代码如下:
.button { min-height: 1.5em; display: inline-block; padding: 12px 36px; margin: 40px 5px 5px 0px; cursor: pointer; opacity: 0.9; color: #FFF; font-size: 1em; letter-spacing: 1px; /* X轴偏移1像素、Y轴偏移2像素、不透明度为0.9的黑色文本阴影 */ text-shadow: rgba(0,0,0,0.9) 0px 1px 2px; background: #434343; border: 1px solid #242424; border-radius: 4px; /* 使用多层阴影实现按钮立体效果 第一层:Y轴偏移1像素、不透明度为0.25的白色外阴影效果 第二层:Y轴偏移1像素、不透明度为0.25的白色内阴影效果 第三层:偏移位0、不透明度为0.25的黑色外阴影效果 第四层:Y轴偏移20像素、不透明度为0.03的白色内阴影效果 第五层:X轴偏移-20像素、Y轴偏移20像素、不透明度为0.15的黑色内阴影效果 第六层:X轴偏移20像素、Y轴偏移20像素、不透明度为0.05的白色内阴影效果 */ box-shadow: rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; /* 让变化的属性在100毫秒内匀速过渡 */ transition: all 0.1s linear; } .button:hover { /* 鼠标悬停时的按钮多层阴影效果,和按钮默认时相比只是第一层有变化: 第一层:X轴偏移2像素、Y轴偏移5像素、不透明度为0.5的黑色外阴影效果 */ box-shadow: rgba(0,0,0,0.5) 0px 2px 5px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; } .shine { display: block; position: relative; /* IE下面使用滤镜实现渐变效果 */ filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00ffffff', endColorstr='#00ffffff',GradientType=1 ); /* 使用水平的线性渐变实现按钮顶部的关泽效果 */ background: linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 50%,rgba(255,255,255,0) 100%); padding: 0px 12px; top: -12px; left: -24px; height: 1px; box-shadow: rgba(255,255,255,0.2) 0px 1px 5px; /* 让变化的属性在300毫秒内以ease-in-out(先加速后减速)方式过渡 */ transition: all 0.3s ease-in-out; }
完整的 CSS 代码如下:
.button { min-height: 1.5em; display: inline-block; padding: 12px 36px; margin: 40px 5px 5px 0px; cursor: pointer; opacity: 0.9; color: #FFF; font-size: 1em; letter-spacing: 1px; text-shadow: rgba(0,0,0,0.9) 0px 1px 2px; background: #434343; border: 1px solid #242424; -webkit-border-radius: 4px; -khtml-border-radius: 4px; -moz-border-radius: 4px; -o-border-radius: 4px; border-radius: 4px; -webkit-box-shadow: rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; -khtml-box-shadow: rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; -moz-box-shadow: rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; -o-box-shadow: rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; box-shadow: rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; -webkit-transition: all 0.1s linear; -khtml-transition: all 0.1s linear; -moz-transition: all 0.1s linear; -o-transition: all 0.1s linear; transition: all 0.1s linear; } .button:hover { -webkit-box-shadow: rgba(0,0,0,0.5) 0px 2px 5px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; -khtml-box-shadow: rgba(0,0,0,0.5) 0px 2px 5px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; -moz-box-shadow: rgba(0,0,0,0.5) 0px 2px 5px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; -o-box-shadow: rgba(0,0,0,0.5) 0px 2px 5px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; box-shadow: rgba(0,0,0,0.5) 0px 2px 5px, inset rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(0,0,0,0.25) 0px 0px 0px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; } .button:active { -webkit-box-shadow: rgba(255,255,255,0.25) 0px 1px 0px,inset rgba(255,255,255,0) 0px 1px 0px, inset rgba(0,0,0,0.5) 0px 0px 5px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; -khtml-box-shadow: rgba(255,255,255,0.25) 0px 1px 0px,inset rgba(255,255,255,0) 0px 1px 0px, inset rgba(0,0,0,0.5) 0px 0px 5px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; -moz-box-shadow: rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(255,255,255,0) 0px 1px 0px, inset rgba(0,0,0,0.5) 0px 0px 5px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; -o-box-shadow: rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(255,255,255,0) 0px 1px 0px, inset rgba(0,0,0,0.5) 0px 0px 5px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; box-shadow: rgba(255,255,255,0.25) 0px 1px 0px, inset rgba(255,255,255,0) 0px 1px 0px, inset rgba(0,0,0,0.5) 0px 0px 5px, inset rgba(255,255,255,0.03) 0px 20px 0px, inset rgba(0,0,0,0.15) 0px -20px 20px, inset rgba(255,255,255,0.05) 0px 20px 20px; } .shine { display: block; position: relative; background: -moz-linear-gradient(left, rgba(255,255,255,0) 0%, rgba(255,255,255,1) 50%, rgba(255,255,255,0) 100%); background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(255,255,255,0)), color-stop(50%,rgba(255,255,255,1)), color-stop(100%,rgba(255,255,255,0))); background: -webkit-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 50%,rgba(255,255,255,0) 100%); background: -o-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 50%,rgba(255,255,255,0) 100%); background: -ms-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 50%,rgba(255,255,255,0) 100%); filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00ffffff', endColorstr='#00ffffff',GradientType=1 ); background: linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 50%,rgba(255,255,255,0) 100%); padding: 0px 12px; top: -12px; left: -24px; height: 1px; -webkit-box-shadow: rgba(255,255,255,0.2) 0px 1px 5px; -khtml-box-shadow: rgba(255,255,255,0.2) 0px 1px 5px; -moz-box-shadow: rgba(255,255,255,0.2) 0px 1px 5px; -o-box-shadow: rgba(255,255,255,0.2) 0px 1px 5px; box-shadow: rgba(255,255,255,0.2) 0px 1px 5px; -webkit-transition: all 0.3s ease-in-out; -khtml-transition: all 0.3s ease-in-out; -moz-transition: all 0.3s ease-in-out; -o-transition: all 0.3s ease-in-out; transition: all 0.3s ease-in-out; }
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