本篇內(nèi)容介紹了“css3發(fā)光搜索表單代碼分享”的有關(guān)知識，在實際案例的操作過程中，不少人都會遇到這樣的困境，接下來就讓小編帶領(lǐng)大家學(xué)習(xí)一下如何處理這些情況吧！希望大家仔細(xì)閱讀，能夠?qū)W有所成！

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先來看一下效果圖：

圖上的搜索框在被激活的時候會出現(xiàn)閃閃發(fā)光的特效。

下面我們來一起看看源代碼。

HTML代碼非常簡單，一個文本框和一個提交按鈕：

代碼如下:

<form action="" method="">            
       <input type="search" placeholder="What are you looking for?">                
       <button>Search</button>
</form>

然后重點就是CSS3代碼了，首先是對搜索框和搜索按鈕的樣式進行初始化，為了配合背景能出現(xiàn)發(fā)光的效果，我們對它們的樣式作了如下設(shè)置：

代碼如下:

.webdesigntuts-workshop {
background: #151515;
height: 100%;
position: absolute;
text-align: center;
width: 100%;
}
.webdesigntuts-workshop:before,.webdesigntuts-workshop:after {
content: '';
display: block;
height: 1px;
left: 50%;
margin: 0 0 0 -400px;
position: absolute;
width: 800px;
}
.webdesigntuts-workshop:before {
background: #444;
background: -webkit-linear-gradient(left, #151515, #444, #151515);
background: -moz-linear-gradient(left, #151515, #444, #151515);
background: -o-linear-gradient(left, #151515, #444, #151515);
background: -ms-linear-gradient(left, #151515, #444, #151515);
background: linear-gradient(left, #151515, #444, #151515);
top: 192px;
}
.webdesigntuts-workshop:after {
background: #000;
background: -webkit-linear-gradient(left, #151515, #000, #151515);
background: -moz-linear-gradient(left, #151515, #000, #151515);
background: -o-linear-gradient(left, #151515, #000, #151515);
background: -ms-linear-gradient(left, #151515, #000, #151515);
background: linear-gradient(left, #151515, #000, #151515);
top: 191px;
}
.webdesigntuts-workshop form {
background: #111;
background: -webkit-linear-gradient(#1b1b1b, #111);
background: -moz-linear-gradient(#1b1b1b, #111);
background: -o-linear-gradient(#1b1b1b, #111);
background: -ms-linear-gradient(#1b1b1b, #111);
background: linear-gradient(#1b1b1b, #111);
border: 1px solid #000;
border-radius: 5px;
box-shadow: inset 0 0 0 1px #272727;
display: inline-block;
font-size: 0px;
margin: 150px auto 0;
padding: 20px;
position: relative;
z-index: 1;
}
.webdesigntuts-workshop input {
background: #222;
background: -webkit-linear-gradient(#333, #222);
background: -moz-linear-gradient(#333, #222);
background: -o-linear-gradient(#333, #222);
background: -ms-linear-gradient(#333, #222);
background: linear-gradient(#333, #222);
border: 1px solid #444;
border-radius: 5px 0 0 5px;
box-shadow: 0 2px 0 #000;
color: #888;
display: block;
float: left;
font-family: 'Cabin', helvetica, arial, sans-serif;
font-size: 13px;
font-weight: 400;
height: 40px;
margin: 0;
padding: 0 10px;
text-shadow: 0 -1px 0 #000;
width: 200px;
}
.ie .webdesigntuts-workshop input {
line-height: 40px;
}
.webdesigntuts-workshop input::-webkit-input-placeholder {
  color: #888;
}
.webdesigntuts-workshop input:-moz-placeholder {
  color: #888;
}
.webdesigntuts-workshop input:focus {
-webkit-animation: glow 800ms ease-out infinite alternate;
-moz-animation: glow 800ms ease-out infinite alternate;
-o-animation: glow 800ms ease-out infinite alternate;
-ms-animation: glow 800ms ease-out infinite alternate;
animation: glow 800ms ease-out infinite alternate;
background: #222922;
background: -webkit-linear-gradient(#333933, #222922);
background: -moz-linear-gradient(#333933, #222922);
background: -o-linear-gradient(#333933, #222922);
background: -ms-linear-gradient(#333933, #222922);
background: linear-gradient(#333933, #222922);
border-color: #393;
box-shadow: 0 0 5px rgba(0,255,0,.2), inset 0 0 5px rgba(0,255,0,.1), 0 2px 0 #000;
color: #efe;
outline: none;
}
.webdesigntuts-workshop input:focus::-webkit-input-placeholder {
color: #efe;
}
.webdesigntuts-workshop input:focus:-moz-placeholder {
color: #efe;
}
.webdesigntuts-workshop button {
background: #222;
background: -webkit-linear-gradient(#333, #222);
background: -moz-linear-gradient(#333, #222);
background: -o-linear-gradient(#333, #222);
background: -ms-linear-gradient(#333, #222);
background: linear-gradient(#333, #222);
-webkit-box-sizing: content-box;
-moz-box-sizing: content-box;
-o-box-sizing: content-box;
-ms-box-sizing: content-box;
box-sizing: content-box;
border: 1px solid #444;
border-left-color: #000;
border-radius: 0 5px 5px 0;
box-shadow: 0 2px 0 #000;
color: #fff;
display: block;
float: left;
font-family: 'Cabin', helvetica, arial, sans-serif;
font-size: 13px;
font-weight: 400;
height: 40px;
line-height: 40px;
margin: 0;
padding: 0;
position: relative;
text-shadow: 0 -1px 0 #000;
width: 80px;
}
.webdesigntuts-workshop button:hover,
.webdesigntuts-workshop button:focus {
background: #292929;
background: -webkit-linear-gradient(#393939, #292929);
background: -moz-linear-gradient(#393939, #292929);
background: -o-linear-gradient(#393939, #292929);
background: -ms-linear-gradient(#393939, #292929);
background: linear-gradient(#393939, #292929);
color: #5f5;
outline: none;
}
.webdesigntuts-workshop button:active {
background: #292929;
background: -webkit-linear-gradient(#393939, #292929);
background: -moz-linear-gradient(#393939, #292929);
background: -o-linear-gradient(#393939, #292929);
background: -ms-linear-gradient(#393939, #292929);
background: linear-gradient(#393939, #292929);
box-shadow: 0 1px 0 #000, inset 1px 0 1px #222;
top: 1px;
}

然后就是利用glow屬性，進行發(fā)光效果渲染，為了適應(yīng)不同內(nèi)核的瀏覽器，我們分別對其做了如下設(shè)置：

代碼如下:

@-webkit-keyframes glow {
0% {
border-color: #393;
box-shadow: 0 0 5px rgba(0,255,0,.2), inset 0 0 5px rgba(0,255,0,.1), 0 2px 0 #000;
}
100% {
border-color: #6f6;
box-shadow: 0 0 20px rgba(0,255,0,.6), inset 0 0 10px rgba(0,255,0,.4), 0 2px 0 #000;
}
}
@-moz-keyframes glow {
0% {
border-color: #393;
box-shadow: 0 0 5px rgba(0,255,0,.2), inset 0 0 5px rgba(0,255,0,.1), 0 2px 0 #000;
}
100% {
border-color: #6f6;
box-shadow: 0 0 20px rgba(0,255,0,.6), inset 0 0 10px rgba(0,255,0,.4), 0 2px 0 #000;
}
}</p> <p>@-o-keyframes glow {
0% {
border-color: #393;
box-shadow: 0 0 5px rgba(0,255,0,.2), inset 0 0 5px rgba(0,255,0,.1), 0 2px 0 #000;
}
100% {
border-color: #6f6;
box-shadow: 0 0 20px rgba(0,255,0,.6), inset 0 0 10px rgba(0,255,0,.4), 0 2px 0 #000;
}
}
@-ms-keyframes glow {
0% {
border-color: #393;
box-shadow: 0 0 5px rgba(0,255,0,.2), inset 0 0 5px rgba(0,255,0,.1), 0 2px 0 #000;
}
100% {
border-color: #6f6;
box-shadow: 0 0 20px rgba(0,255,0,.6), inset 0 0 10px rgba(0,255,0,.4), 0 2px 0 #000;
}
}
@keyframes glow {
0% {
border-color: #393;
box-shadow: 0 0 5px rgba(0,255,0,.2), inset 0 0 5px rgba(0,255,0,.1), 0 2px 0 #000;
}
100% {
border-color: #6f6;
box-shadow: 0 0 20px rgba(0,255,0,.6), inset 0 0 10px rgba(0,255,0,.4), 0 2px 0 #000;
}
}

“css3發(fā)光搜索表單代碼分享”的內(nèi)容就介紹到這里了，感謝大家的閱讀。如果想了解更多行業(yè)相關(guān)的知識可以關(guān)注創(chuàng)新互聯(lián)網(wǎng)站，小編將為大家輸出更多高質(zhì)量的實用文章！

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