纯 CSS 关闭按钮

Basic idea: For the a.boxclose:

border-radius: 40px;
width:20px;
height 10px;
background-color: #c0c0c0;
border: 1px solid black;
color: white;
padding-left: 10px;
padding-top: 4px;

Adding a "X" to the content of the close box.

http://jsfiddle.net/adzFe/1/

Quick and dirty, but works.

Edit: Updated css to match with what you have..

DEMO

HTML

<div>
<span class="close-btn"><a href="#">X</a></span>
</div>

CSS

.close-btn {
border: 2px solid #c2c2c2;
position: relative;
padding: 1px 5px;
top: -20px;
background-color: #605F61;
left: 198px;
border-radius: 20px;
}


.close-btn a {
font-size: 15px;
font-weight: bold;
color: white;
text-decoration: none;
}

I spent more time on this than I should have, and haven't tested in IE for obvious reasons. That being said, it's pretty much identical.

http://jsfiddle.net/adzFe/14/

a.boxclose{
float:right;
margin-top:-30px;
margin-right:-30px;
cursor:pointer;
color: #fff;
border: 1px solid #AEAEAE;
border-radius: 30px;
background: #605F61;
font-size: 31px;
font-weight: bold;
display: inline-block;
line-height: 0px;
padding: 11px 3px;
}


.boxclose:before {
content: "×";
}

If you want pure css, without the letter "x"....

Here are some awesome experimental icons that include an "x" in a circle that is made with CSS: http://nicolasgallagher.com/pure-css-gui-icons/demo/

Hi you can used this code in pure css

as like this

css

.arrow {
cursor: pointer;
color: white;
border: 1px solid #AEAEAE;
border-radius: 30px;
background: #605F61;
font-size: 31px;
font-weight: bold;
display: inline-block;
line-height: 0px;
padding: 11px 3px;
}
.arrow:before{
content: "×";
}

HTML

<a href="#" class="arrow">
</a>

Live demo http://jsfiddle.net/rohitazad/VzZhU/

Just a thought - if you're not targeting IE7, you could get away with any image being base64-encoded and embedded into css. I'm assuming your goal is to avoid an unnecessary http request rather than to actually make a css button as its own goal.

The disappointing thing here is that the "X" isn't transparent (which is how I would likely create a PNG, at least).

I put together this quick test. http://jsfiddle.net/UM3a2/22/embedded/result/ which allows you to color the positive space while leaving the negative space transparent. Since it is made entirely of borders it is easy to color since border-color defaults to the text color.

It doesn't fully support I.E. 8 and earlier (border-radius issues), but it degrades to a square fairly nicely (if you're okay with a square close button).

It also requires two HTML elements since you are only allowed two pseudo elements per selector. I don't know exactly where I learned this, but I think it was in an article by Chris Coyier.

<div id="close" class="arrow-t-b">
Close
<div class="arrow-l-r"> </div>
</div>


#close {
border-width: 4px;
border-style: solid;
border-radius: 100%;
color: #333;
height: 12px;
margin:auto;
position: relative;
text-indent: -9999px;
width: 12px;
}
#close:hover {
color: #39F;
}
.arrow-t-b:after,
.arrow-t-b:before,
.arrow-l-r:after,
.arrow-l-r:before {
border-color: transparent;
border-style: solid;
border-width: 4px;
content: "";
left: 2px;
top: 0px;
position: absolute;
}
.arrow-t-b:after {
border-top-color: inherit;
}
.arrow-l-r:after {
border-right-color: inherit;
left: 4px;
top: 2px;
}
.arrow-t-b:before {
border-bottom-color: inherit;
bottom: 0;
}
.arrow-l-r:before {
border-left-color: inherit;
left: 0;
top: 2px;
}

My attempt at a close icon, no text

.close-icon
{
display:block;
box-sizing:border-box;
width:20px;
height:20px;
border-width:3px;
border-style: solid;
border-color:red;
border-radius:100%;
background: -webkit-linear-gradient(-45deg, transparent 0%, transparent 46%, white 46%,  white 56%,transparent 56%, transparent 100%), -webkit-linear-gradient(45deg, transparent 0%, transparent 46%, white 46%,  white 56%,transparent 56%, transparent 100%);
background-color:red;
box-shadow:0px 0px 5px 2px rgba(0,0,0,0.5);
transition: all 0.3s ease;
}

<a href="#" class="close-icon"></a>

You can create close (or any) button on http://www.cssbuttongenerator.com/. It gives you pure css value of button.
HTML

<span class="classname hightlightTxt">x</span>

CSS

<style type="text/css">
.hightlightTxt {
-webkit-touch-callout: none;
-webkit-user-select: none;
-moz-user-select: none;
}
.classname {
-moz-box-shadow:inset 0px 3px 24px -1px #fce2c1;
-webkit-box-shadow:inset 0px 3px 24px -1px #fce2c1;
box-shadow:inset 0px 3px 24px -1px #fce2c1;
background:-webkit-gradient( linear, left top, left bottom, color-stop(0.05, #ffc477), color-stop(1, #fb9e25) );
background:-moz-linear-gradient( center top, #ffc477 5%, #fb9e25 100% );
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffc477', endColorstr='#fb9e25');
background-color:#ffc477;
-webkit-border-top-left-radius:20px;
-moz-border-radius-topleft:20px;
border-top-left-radius:20px;
-webkit-border-top-right-radius:20px;
-moz-border-radius-topright:20px;
border-top-right-radius:20px;
-webkit-border-bottom-right-radius:20px;
-moz-border-radius-bottomright:20px;
border-bottom-right-radius:20px;
-webkit-border-bottom-left-radius:20px;
-moz-border-radius-bottomleft:20px;
border-bottom-left-radius:20px;
text-indent:0px;
border:1px solid #eeb44f;
display:inline-block;
color:#ffffff;
font-family:Arial;
font-size:28px;
font-weight:bold;
font-style:normal;
height:32px;
line-height:32px;
width:32px;
text-decoration:none;
text-align:center;
text-shadow:1px 1px 0px #cc9f52;
}
.classname:hover {
background:-webkit-gradient( linear, left top, left bottom, color-stop(0.05, #fb9e25), color-stop(1, #ffc477) );
background:-moz-linear-gradient( center top, #fb9e25 5%, #ffc477 100% );
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#fb9e25', endColorstr='#ffc477');
background-color:#fb9e25;
}.classname:active {
position:relative;
top:1px;
}</style>
/* This button was generated using CSSButtonGenerator.com */

I become frustrated trying to implement something that looked consistent in all browsers and went with an svg button which can be styled with css.

html

<svg>
<circle cx="12" cy="12" r="11" stroke="black" stroke-width="2" fill="white" />
<path stroke="black" stroke-width="4" fill="none" d="M6.25,6.25,17.75,17.75" />
<path stroke="black" stroke-width="4" fill="none" d="M6.25,17.75,17.75,6.25" />
</svg>

css

svg {
cursor: pointer;
height: 24px;
width: 24px;
}
svg > circle {
stroke: black;
fill: white;
}
svg > path {
stroke: black;
}
svg:hover > circle {
fill: red;
}
svg:hover > path {
stroke: white;
}

http://jsfiddle.net/purves/5exav2m7/

I Think It Is Best!

And Use The Simple JS to make this work.

<script>
function privacypolicy(){
var privacypolicy1 = document.getElementById('privacypolicy');
var privacypolicy2 = ('display: inline;');
privacypolicy1.style= privacypolicy2;
}
function hideprivacypolicy(){
var privacypolicy1 = document.getElementById('privacypolicy');
var privacypolicy2 = ('display: none;');
privacypolicy1.style= privacypolicy2;
}
</script>
<style type="text/css">
.orthi-textlightbox-background{
background-color: rgba(30, 23, 23, 0.82);
font-family: siyam rupali;
position: fixed; top:0px;
bottom:0px;
right:0px;
width: 100%;
border: none;
margin:0;
padding:0;
overflow: hidden;
z-index:999999;
height: 100%;
}


.orthi-textlightbox-area {
background-color: #fff;
position: absolute;
width: 50%;
left: 300px;
top: 200px;
padding: 20px 10px;
border-radius: 6px;
}
.orthi-textlightbox-area-close{
font-weight: bold;
background-color:black;
color: white;
border-radius: 50%;
padding: 10px;
float: right;
border: 1px solid black;
box-shadow: 0 0 10px 0 rgba(33, 157, 216, 0.82);
margin-top:-30px;
margin-right:-30px;
cursor:pointer;
}
</style>
<button onclick="privacypolicy()">Show Content</button>
<div id="privacypolicy" class="orthi-textlightbox-background" style="display:none;">
<div class="orthi-textlightbox-area">
LOL<button class="orthi-textlightbox-area-close" onclick="hideprivacypolicy()">×</button>
</div>
</div>