CSS3 按钮
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CSS 按钮
本章节我们为大家介绍使用 CSS 来制作按钮。
基本按钮样式
代码
<style>
.btn {
border: none;
color: #FFFFFF;
padding: 15px 32px;
text-align: center;
-webkit-transition-duration: 0.4s;
transition-duration: 0.4s;
margin: 16px 0 !important;
text-decoration: none;
font-size: 16px;
background-color: rgb(48, 110, 50);
border-top-color: initial;
border-right-color: initial;
border-bottom-color: initial;
border-left-color: initial;
color: rgb(255, 255, 255);
text-decoration-color: initial;
}
</style>
<button class="btn">CSS 按钮</button>
<button style="margin-left:25px;">默认按钮</button>
渲染效果如下：
.button {
background-color: #4CAF50; /* Green */
border: none;
color: white;
padding: 15px 32px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
}
按钮颜色
Green Blue Red Gray Black
我们可以使用 background-color 属性来设置按钮颜色:
<style>
.button1 {background-color: #4CAF50;} /* Green */
.button2 {background-color: #008CBA;} /* Blue */
.button3 {background-color: #f44336;} /* Red */
.button4 {background-color: #e7e7e7; color: black;} /* Gray */
.button5 {background-color: #555555;} /* Black */
</style>
<button type="button" class="btn button1">Green</button>
<button type="button" class="btn button2">Blue</button>
<button type="button" class="btn button3">Red</button>
<button type="button" class="btn button4">Gray</button>
<button type="button" class="btn button5">Black</button>
<button type="button" class="btn button1">Green</button>
<button type="button" class="btn button2">Blue</button>
<button type="button" class="btn button3">Red</button>
<button type="button" class="btn button4">Gray</button>
<button type="button" class="btn button5">Black</button>
按钮大小
我们可以使用 font-size 属性来设置按钮大小:
<style>
.font1 {font-size: 10px;}
.font2 {font-size: 12px;}
.font3 {font-size: 16px;}
.font4 {font-size: 20px;}
.font5 {font-size: 24px;}
</style>
<div>
<button type="button" class="btn button1 font1">10px</button>
<button type="button" class="btn button2 font2">12px</button>
<button type="button" class="btn button3 font3">16px</button>
<button type="button" class="btn button4 font4">20px</button>
<button type="button" class="btn button5 font5">24px</button>
</div>
圆角按钮
我们可以使用 border-radius 属性来设置圆角按钮:
<style>
.round1 {border-radius: 2px;}
.round2 {border-radius: 4px;}
.round3 {border-radius: 8px;}
.round4 {border-radius: 12px;}
.round5 {border-radius: 50%;}
</style>
<div>
<button type="button" class="btn button1 round1">2px</button>
<button type="button" class="btn button2 round2">4px</button>
<button type="button" class="btn button3 round3">8px</button>
<button type="button" class="btn button4 round4">12px</button>
<button type="button" class="btn button5 round5">50%</button>
</div>
渲染效果如下
按钮边框颜色
我们可以使用 border 属性设置按钮边框颜色:
.button1 {
background-color: white;
color: black;
border: 2px solid #4CAF50; /* Green */
}
演示效果
代码如下
<style>
.border1 {border-radius:3px;background-color:white;color:black;border:2px solid #4CAF50;}
.border2 {border-radius:3px;background-color:white;color:black;border:2px solid #008CBA;}
.border3 {border-radius:3px;background-color:white;color:black;border:2px solid #f44336;}
.border4 {border-radius:3px;background-color:white;color:black;border:2px solid #e7e7e7;}
.border5 {border-radius:3px;background-color:white;color:black;border:2px solid #555555;}
</style>
<div>
<button type="button" class="btn border1">绿</button>
<button type="button" class="btn border2">蓝</button>
<button type="button" class="btn border3">红</button>
<button type="button" class="btn border4">灰</button>
<button type="button" class="btn border5">黑</button>
</div>
鼠标悬停按钮
代码如下
<style>
.border11:hover {background-color:#4CAF50;color:white;}
.border22:hover {background-color:#008CBA;color:white;}
.border33:hover {background-color:#f44336;color:white;}
.border44:hover {background-color:#e7e7e7;}
.border55:hover {background-color:#555555;color:white;}
.border111{border-radius:3px;background-color:#4CAF50;color:white;}
.border222{border-radius:3px;background-color:#008CBA;color:white;}
.border333 {border-radius:3px;background-color:#f44336;color:white;}
.border444 {border-radius:3px;background-color:#e7e7e7;}
.border555 {border-radius:3px;background-color:#555555;color:white;}
.border111:hover {background-color:white;color:black;border:2px solid #4CAF50;}
.border222:hover {background-color:white;color:black;border:2px solid #008CBA;}
.border333:hover {background-color:white;color:black;border:2px solid #f44336;}
.border444:hover {background-color:white;color:black;border:2px solid #e7e7e7;}
.border555:hover {background-color:white;color:black;border:2px solid #555555;}
</style>
<div>
<button type="button" class="btn border1 border111">绿</button>
<button type="button" class="btn border2 border222">蓝</button>
<button type="button" class="btn border3 border333">红</button>
<button type="button" class="btn border4 border444">灰</button>
<button type="button" class="btn border5 border555">黑</button>
</div>
<div>
<button type="button" class="btn border1 border11">绿</button>
<button type="button" class="btn border2 border22">蓝</button>
<button type="button" class="btn border3 border33">红</button>
<button type="button" class="btn border4 border44">灰</button>
<button type="button" class="btn border5 border55">黑</button>
</div>
我们可以使用 :hover 选择器来修改鼠标悬停在按钮上的样式。
提示: 我们可以使用 transition-duration 属性来设置 “hover” 效果的速度:
.button {
-webkit-transition-duration: 0.4s; /* Safari */
transition-duration: 0.4s;
}
.button:hover {
background-color: #4CAF50; /* Green */
color: white;
}
按钮阴影
我们可以使用 box-shadow 属性来为按钮添加阴影:
.button1 {
box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
}
.button2:hover {
box-shadow: 0 12px 16px 0 rgba(0,0,0,0.24), 0 17px 50px 0 rgba(0,0,0,0.19);
}
禁用按钮
代码如下
<style>
.disabled{cursor: not-allowed;opacity: 0.6;}
</style>
<div>
<button type="button" class="btn">正常按钮</button>
<button type="button" class="btn disabled">禁用按钮</button>
</div>
我们可以使用 opacity 属性为按钮添加透明度 (看起来类似 “disabled” 属性效果)。
提示: 我们可以添加 cursor 属性并设置为 “not-allowed” 来设置一个禁用的图片:
.disabled {
opacity: 0.6;
cursor: not-allowed;
}
按钮宽度
代码如下
<style>
.width1 {width: 250px}
.width2 {width: 50%}
.width3 {width: 100%}
</style>
<div>
<button type="button" class="btn button1 width1">250px</button>
<br>
<button type="button" class="btn button2 width2">50%</button>
<br>
<button type="button" class="btn button3 width3">100%</button>
</div>
默认情况下，按钮的大小有按钮上的文本内容决定( 根据文本内容匹配长度 )。 我们可以使用 width 属性来设置按钮的宽度:
提示: 如果要设置固定宽度可以使用像素 (px) 为单位，如果要设置响应式的按钮可以设置为百分比。
.button1 {width: 250px;}
.button2 {width: 50%;}
.button3 {width: 100%;}
按钮组
效果如下
<style>
.float {
margin: 0 !important;
float: left;
transition: none;
}
.float:hover {
background-color: #3e8e41;
}
</style>
<div>
<button type="button" class="btn button1 float">Button</button>
<button type="button" class="btn button2 float">Button</button>
<button type="button" class="btn button3 float">Button</button>
<button type="button" class="btn button4 float">Button</button>
</div>
移除外边距并添加 float:left 来设置按钮组:
.button {
float: left;
}
带边框按钮组
代码如下
<button
type="button"
class="btn btn1 float"
style="
border: 1px solid green;
--darkreader-inline-border-top:#00e500;
--darkreader-inline-border-right:#00e500;
--darkreader-inline-border-bottom:#00e500;
--darkreader-inline-border-left:#00e500;"
data-darkreader-inline-border-top=""
data-darkreader-inline-border-right=""
data-darkreader-inline-border-bottom=""
data-darkreader-inline-border-left=""
>
Button
</button>
我们可以使用 border 属性来设置带边框的按钮组:
.button {
float: left;
border: 1px solid green
}
按钮动画
鼠标移动到按钮上后添加箭头标记:
代码如下
<style>
.button {
display: inline-block;
border-radius: 4px;
background-color: #f4511e;
border: none;
color: #FFFFFF;
text-align: center;
font-size: 28px;
padding: 20px;
width: 180px;
transition: all 0.5s;
cursor: pointer;
margin: 5px;
vertical-align:middle;
}
.button span {
cursor: pointer;
display: inline-block;
position: relative;
transition: 0.5s;
}
.button span :after {
content: '»';
position: absolute;
opacity: 0;
top: 0;
right: -20px;
transition: 0.5s;
}
.button:hover span {
padding-right: 25px;
}
.button:hover span :after {
opacity: 1;
right: 0;
}
</style>
<div >
<button class="button">
<span>Hover </span>
</button>
</div>
点击时添加 “波纹” 效果:
代码如下
<style>
.button123 {
position: relative;
background-color: #4CAF50;
border: none;
font-size: 28px;
color: #FFFFFF;
padding: 20px;
width: 200px;
text-align: center;
-webkit-transition-duration: 0.4s; /* Safari */
transition-duration: 0.4s;
text-decoration: none;
overflow: hidden;
cursor: pointer;
}
.button123:after {
content: "";
background: #90EE90;
display: block;
position: absolute;
padding-top: 300%;
padding-left: 350%;
margin-left: -20px!important;
margin-top: -120%;
opacity: 0;
transition: all 0.8s
}
.button123:active:after {
padding: 0;
margin: 0;
opacity: 1;
transition: 0s
}
</style>
<button class="button123">Click Me</button>
点击时添加 “压下” 效果:
代码如下
<style>
.button777 {
display: inline-block;
padding: 15px 25px;
font-size: 24px;
cursor: pointer;
text-align: center;
text-decoration: none;
outline: none;
color: #fff;
background-color: #4CAF50;
border: none;
border-radius: 15px;
box-shadow: 0 9px #999;
}
.button777:hover {background-color: #3e8e41}
.button777:active {
background-color: #3e8e41;
box-shadow: 0 5px #666;
transform: translateY(4px);
}
</style>
<div>
<button class="button777">Click Me</button>
</div>
