HTML图片的hover效果，要求反色效果，图片如下，求大神点拔！！！

如果是h5页面，可使用transform:rotate和border-raidus实现图形定义，hover效果可直接用css3实现，不过内部的图标是需要图片做背景支持的。

如果是普通页面，建议使用热区+javascript方式实现，下面四个按钮做成四张图定位到对应位置，同时做对应另外四张图作为hover效果图，按钮之上覆盖一层透明gif，然后在gif上定义链接热区，因为热区可随意定义形状，所以可实现途中的响应区域，当鼠标移动到某一热区时，脚本控制改变下面对应的按钮图片切换为hover效果图即可

a:hover{

display: block

color:#000000

background:url(image/ico.jpg)

}

用display: block把a定义为块级元素就可以了

@charset "utf-8"

/*科e互联特效基本框架CSS*/

body, ul, dl, dd, dt, ol, li, p, h1, h2, h3, h4, h5, h6, textarea, form, select, fieldset, table, td, div, input {margin:0padding:0-webkit-text-size-adjust: none}

h1, h2, h3, h4, h5, h6{font-size:12pxfont-weight:normal}

body>div{margin:0 auto}

div {text-align:left}

a img {border:0}

body { color: #333text-align: centerfont: 12px "微软雅黑"}

ul, ol, li {list-style-type:nonevertical-align:0}

a {outline-style:nonecolor:#535353text-decoration:none}

a:hover { color: #D40000text-decoration: none}

.clear{height:0overflow:hiddenclear:both}

.button {display: inline-blockzoom: 1*display: inlinevertical-align: baselinemargin: 0 2pxoutline: nonecursor: pointertext-align: centertext-decoration: nonefont: 14px/100% Arial, Helvetica, sans-serifpadding:0.25em 0.6em 0.3emtext-shadow: 0 1px 1px rgba(0,0,0,.3)-webkit-border-radius: .5em-moz-border-radius: .5emborder-radius: .5em-webkit-box-shadow: 0 1px 2px rgba(0,0,0,.2)-moz-box-shadow: 0 1px 2px rgba(0,0,0,.2)box-shadow: 0 1px 2px rgba(0,0,0,.2)

}

.red {color: #fadddeborder: solid 1px #980c10background: #d81b21background: -webkit-gradient(linear, left top, left bottom, from(#ed1c24), to(#A51715))background: -moz-linear-gradient(top, #ed1c24, #A51715)filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ed1c24', endColorstr='#aa1317')

}

.red:hover { background: #b61318background: -webkit-gradient(linear, left top, left bottom, from(#c9151b), to(#a11115))background: -moz-linear-gradient(top, #c9151b, #a11115)filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#c9151b', endColorstr='#a11115')color:#fff}

.red:active {color: #de898cbackground: -webkit-gradient(linear, left top, left bottom, from(#aa1317), to(#ed1c24))background: -moz-linear-gradient(top, #aa1317, #ed1c24)filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#aa1317', endColorstr='#ed1c24')}

.cor_bs,.cor_bs:hover{color:#ffffff}

.keBody{background:url(../images/bodyBg.jpg) repeat #333}

.keTitle{height:100pxline-height:100pxfont-size:30pxfont-family:'微软雅黑'color:#FFFtext-align:centerbackground:url(../images/bodyBg3.jpg) repeat-x bottom leftfont-weight:normal}

.kePublic{background:#dfdfdfpadding:50px}

.keBottom{color:#FFFpadding-top:25pxline-height:28pxtext-align:centerfont-family:'微软雅黑'background:url(../images/bodyBg2.jpg) repeat-x top leftpadding-bottom:25px}

.keTxtP{font-size:16pxcolor:#ffffff}

.keUrl{color:#FFFfont-size:30px}

.keUrl:hover{ text-decoration: underlinecolor: #FFF}

.mKeBanner,.mKeBanner div{text-align:center}

/*科e互联特效基本框架CSS结束，应用特效时，以上样式可删除*/

/* 效果CSS开始 */

body {

-webkit-backface-visibility: hidden

}

.demo {

margin: 0px auto

text-align:center

}

.nav li{

position: relative

display: inline-block

margin-left: -50px

-webkit-transition: all 0.4s linear

-moz-transition: all 0.4s linear

-o-transition: all 0.4s linear

-ms-transition: all 0.4s linear

transition: all 0.4s linear

}

.nav li a {

display: inline-block

width: 120px

height: 120px

padding: 30px

border-radius: 50%

border-width: 8px

border-style: solid

}

.nav li:hover {

z-index: 11

-webkit-transform: scale(1.1)

-moz-transform: scale(1.1)

-o-transform: scale(1.1)

-ms-transform: scale(1.1)

transform: scale(1.1)

}

.nav li:hover a {

text-decoration: none

}

.nav li:hover span {

-webkit-transition: all 0.4s linear

-moz-transition: all 0.4s linear

-o-transition: all 0.4s linear

-ms-transition: all 0.4s linear

transition: all 0.4s linear

-webkit-animation: moveFromBottom 0.3s ease

-moz-animation: moveFromBottom 0.3s ease

-o-animation: moveFromBottom 0.3s ease

-ms-animation: moveFromBottom 0.3s ease

animation: moveFromBottom 0.3s ease

}

.nav li:nth-child(1) a {

color: #4d9683

text-shadow: 0 1px 0 #9de3cf

border-color: #549e89

background-color: #51c9a7

}

.nav li:nth-child(2) a {

color: #be607e

text-shadow: 0 1px 0 #de8ba5

border-color: #e499b0

background-color: #e67b9c

}

.nav li:nth-child(3) a {

color: #5e9eb4

text-shadow: 0 1px 0 #adddec

border-color: #a2cfde

background-color: #7ec9e3

}

.nav li:nth-child(4) a {

color: #ba9d5e

text-shadow: 0 1px 0 #f5e0ad

border-color: #dcc999

background-color: #f0cd78

}

.nav li:nth-child(5) a {

color: #b468a2

text-shadow: 0 1px 0 #e8acd8

border-color: #d8abcd

background-color: #dd91cb

}

.nav li:nth-child(1):hover a {

color: #0f775c

text-shadow: 0 1px 0 #81e6c9

border-color: #0a8462

background-color: #00c18c

}

.nav li:nth-child(2):hover a {

color: #b12a55

text-shadow: 0 1px 0 #ff95b7

border-color: #ba335c

background-color: #ea5180

}

.nav li:nth-child(3):hover a {

color: #2883a2

text-shadow: 0 1px 0 #9cdef2

border-color: #4397b3

background-color: #55c1e5

}

.nav li:nth-child(4):hover a {

color: #ab8228

text-shadow: 0 1px 0 #ffe199

border-color: #b08f3e

background-color: #f8c64d

}

.nav li:nth-child(5):hover a {

color: #a33689

text-shadow: 0 1px 0 #ec97d6

border-color: #b7569f

background-color: #dd70c3

}

.nav span {

display: block

line-height:70px

font-size: 30px

font-style: normal

}

.nav span:before {

display: block

}

.nav li:nth-child(1) span:before {

content: "home"

}

.nav li:nth-child(2) span:before {

content: "phone"

}

.nav li:nth-child(3) span:before {

content: "wifi"

}

.nav li:nth-child(4) span:before {

content: "setting"

}

.nav li:nth-child(5) span:before {

content: "twitter"

}

@-webkit-keyframes moveFromBottom {

from {

-webkit-transform: translateY(120%) scale(0.5)

opacity: 0

}

to {

-webkit-transform: translateY(0%) scale(1)

opacity: 1

}

}

@-moz-keyframes moveFromBottom {

from {

-moz-transform: translateY(120%) scale(0.5)

opacity: 0

}

to {

-moz-transform: translateY(0%) scale(1)

opacity: 1

}

}

@-ms-keyframes moveFromBottom {

from {

-ms-transform: translateY(120%) scale(0.5)

opacity: 0

}

to {

-ms-transform: translateY(0%) scale(1)

opacity: 1

}

}

@-o-keyframes moveFromBottom {

from {

-o-transform: translateY(120%) scale(0.5)

opacity: 0

}

to {

-o-transform: translateY(0%) scale(1)

opacity: 1

}

}

@keyframes moveFromBottom {

from {

transform: translateY(120%) scale(0.5)

opacity: 0

}

to {

transform: translateY(0%) scale(1)

opacity: 1

}

}

.nav span:before {

font-family: 'LigatureSymbols'

text-rendering: optimizeLegibility

-webkit-font-smoothing: antialiased

-moz-font-smoothing: antialiased

-ms-font-smoothing: antialiased

-o-font-smoothing: antialiased

font-smoothing: antialiased

-webkit-font-feature-settings: "liga" 1, "dlig" 1

-moz-font-feature-settings: "liga=1, dlig=1"

-ms-font-feature-settings: "liga" 1, "dlig" 1

font-feature-settings: "liga" 1, "dlig" 1

font-size: 80px

}

@font-face {

font-family: 'LigatureSymbols'

src: url('../font/LigatureSymbols-2.05.eot')

src: url('../font/LigatureSymbols-2.05.eot?#iefix') format('embedded-opentype'),

url('../font/LigatureSymbols-2.05.woff') format('woff'),

url('../font/LigatureSymbols-2.05.ttf') format('truetype'),

url('../font/LigatureSymbols-2.05.svg#LigatureSymbols') format('svg')

font-weight: normal

font-style: normal

}

/* 效果CSS结束 */

---