css - 为什么灰色背景颜色仅出现在 Google Chrome 中？

Question

在其他浏览器中完全没有问题。但是在 chroom 中，当我将鼠标悬停在菜单上时，会出现灰色背景色，当将鼠标从菜单上移开时，该颜色会完全或部分消失。当我用 Firebug 检查元素时，它也会完全消失。这是图像。 页面样式

body
{
    font-size: .80em;
    font-family: "Helvetica Neue" , "Lucida Grande" , "Segoe UI" , Arial, Helvetica, Verdana, sans-serif;
    background-color: #d0e2e0;
    background-repeat: repeat-x;
    background-image: url('../images/bar6.png');
}
.logout
{
    color: #666666;
    text-decoration: none;
}
.logout:hover
{
    color: #000;
}
fieldset
{
    border-radius: 6px;
}
.ptext
{
    font-size: 11px;
}
fieldset legend
{
    font-size: 14px;
    font-weight: bold;
    color: #4b4b4d;
    font-family: Calibri;
}
img
{
    border-width: 0px;
}
.mainmenu
{
    background-color: #468B6A;
    margin-top: -50px !important;
    width: 74%;
    background-size: 1% 100%;
    background-image: url('../images/bar.png');
}
.clear
{
    clear: both;
}
.footer
{
    margin: 5px auto 5px auto;
    width: 960px;
    text-align: center;
}
.btn
{
    padding: 4px 10px;
}

input[type=submit], input[type=button]
{
    background-image: url('../images/bar1.png');
    background-size: 1% 100%;
    background-color: #D6DD51;
    border: 1px solid #91cda0;
    border-radius: 4px 4px 4px 4px;
    color: #4b4b4d;
    font-family: calibri;
    font-size: 13px;
    font-weight: bold;
    padding: 4px 10px;
}
input[type=submit]:hover, input[type=button]:hover
{
    border-color: #ffcc28;
    background-image: none;
    background-color: #D6DD51;
    color: #4b4b4d;
    cursor: pointer;
}

.reportheader
{
    height: 35px;
    background-image: url('../images/bar.png');
    background-size: 1% 100%;
    color: #FFFFFF;
    vertical-align: middle;
    padding: 10px;
    border-radius: 6px 6px 0px 0px;
}
.pageheader
{
    height: 80px;
    color: #666666;
    vertical-align: middle;
    padding: 10px;
    border-radius: 6px 6px 0px 0px;
}
.page
{
    margin: 5px auto 30px auto;
    width: 960px;
    border: 1px Solid #cccccc;
    border-radius: 6px;
    min-height: 600px;
    background-color: #FFF;
}

.fullWidth
{
    width: 100%;
}
.alignLeft
{
    text-align: left;
}
.alignRight
{
    text-align: right;
    vertical-align: text-top;
}
.alignCenter
{
    text-align: center;
    vertical-align: text-top;
}
label
{
    font-size: 11px;
    font-weight: bold;
    color: #666;
}
.textBox, .textArea, .email, .dropdown, .smalltext, .verysmalltext, .listbox, .comment
{
    border: 1px solid #CCCCCC;
    border-radius: 4px;
    height: 22px;
}

.msgSucess
{
    color: #2B7F10;
}
.msgError
{
    color: #800000;
}
.textBox
{
    width: 250px;
}

.textArea
{
    width: 732px;
    height: 272px;
}
.email
{
    width: 250px;
}
.smalltext
{
    width: 150px;
}

.verysmalltext
{
    width: 100px;
}

.dropdown
{
    width: 153px;
}






.textBox:hover, .textArea:hover, .email:hover, .dropdown:hover, .smalltext:hover, .verysmalltext:hover, .listbox:hover
{
    background-color: #F4F4F4;
    border: 1px solid #909090;
}



.validator
{
    color: #FF2828;
}








.floatLeft
{
    text-align: right;
    float: left;
    width: 20%;
}
.floatRight
{
    float: right;
    width: 78%;
}
.floatRight .textBox, .textArea, .dropdown, .smalltext, .verysmalltext
{
}


.floatLeft p
{
    margin-top: 0px;
}
.listbox
{
    margin-top: 3px;
    border: 1px solid #CCCCCC;
    background-color: #F0F0F0;
    padding: 5px;
    width: 200px;
}


.mainDiv
{
    padding: 10px;
    width: 100%;
}


.errorMessage
{
    color: #D8000C;
    border: 1px solid #FF4F4F;
    background-color: #FFE8E1;
    height: 50px;
    width: 400px;
}

.highlightValidator
{
}
.CustomValidator
{
}


.KimsCustomCalloutStyle div, .KimsCustomCalloutStyle td
{
    border: solid 1px #CCCCCC;
    background-color: #F3F3F3;
    color: #666666;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_popup_table
{
    display: none;
    border: none;
    background-color: transparent;
    padding: 0px;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_popup_table_row
{
    vertical-align: top;
    height: 100%;
    background-color: transparent;
    padding: 0px;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_callout_cell
{
    width: 20px;
    height: 100%;
    text-align: right;
    vertical-align: top;
    border: none;
    background-color: transparent;
    padding: 0px;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_callout_table
{
    height: 100%;
    border: none;
    background-color: transparent;
    padding: 0px;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_callout_table_row
{
    background-color: transparent;
    padding: 0px;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_callout_arrow_cell
{
    padding: 8px 0px 0px 0px;
    text-align: right;
    vertical-align: top;
    font-size: 1px;
    border: none;
    background-color: transparent;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_callout_arrow_cell .ajax__validatorcallout_innerdiv
{
    font-size: 1px;
    position: relative;
    left: 1px;
    border-bottom: none;
    border-right: none;
    border-left: none;
    width: 15px;
    background-color: transparent;
    padding: 0px;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_callout_arrow_cell .ajax__validatorcallout_innerdiv div
{
    height: 1px;
    overflow: hidden;
    border-top: none;
    border-bottom: none;
    border-right: none;
    padding: 0px;
    margin-left: auto;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_error_message_cell
{
    font-family: Tahoma;
    font-size: 11px;
    padding: 5px;
    border-right: none;
    border-left: none;
    width: 100%;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_icon_cell
{
    width: 20px;
    padding: 5px;
    border-right: none;
    border-radius: 5px 0 0 5px;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_close_button_cell
{
    vertical-align: top;
    padding: 0px;
    text-align: right;
    border-left: none;
    border-radius: 0 5px 5px 0;
}
.KimsCustomCalloutStyle .ajax__validatorcallout_close_button_cell .ajax__validatorcallout_innerdiv
{
    border: none;
    text-align: center;
    width: 10px;
    padding: 1px;
    cursor: pointer;
    border-radius: 0 5px 0 0;
}




.comment
{
    height: 220px;
    width: 650px;
}

.round
{
    border: 1px solid #CCCCCC;
    border-radius: 6px 6px 6px 6px; /*  margin: 15px 0;             */
    padding: 10px;
    width: 100%;
    box-shadow: 2px 2px 2px #CCCCCC;
    min-height: 100px;
}
.imageCss
{
    width: 50px;
    height: 50px;
}
.userName
{
}

.imageCss:hover
{
}

.thumbnail
{
}

.hide
{
    display: none;
}
.sqaText
{
    border: 1px solid #CCCCCC;
    border-radius: 4px;
    height: 22px;
    width: 200px;
    box-shadow: 1px 1px 1px #CCCCCC;
}
.sqaSmallText
{
    border: 1px solid #CCCCCC;
    border-radius: 4px;
    height: 22px;
    width: 200px;
    box-shadow: 1px 1px 1px #CCCCCC;
}
.sqafullWidth
{
    width: 100%;
}
.sqafullWidth .alignRight
{
    vertical-align: middle;
}


.edit
{
    background-image: url('../Images/edit 16x16.png');
    background-repeat: no-repeat;
    background-position: left center;
    border: 1px solid #CCCCCC;
    border-radius: 4px 4px 4px 4px;
    box-shadow: 1px 1px 1px #CCCCCC;
    padding: 5px 26px;
    text-decoration: none;
}
.delete
{
    background-image: url('../Images/delete 16x16.png');
    background-repeat: no-repeat;
    background-position: left center;
    border-radius: 4px 4px 4px 4px;
    border: 1px solid #CCCCCC;
    box-shadow: 1px 1px 1px #CCCCCC;
    padding: 5px 26px;
    text-decoration: none;
}
.delete:hover
{
    border: 1px solid #808080;
    box-shadow: 1px 1px 1px #808080;
}
.edit:hover
{
    border: 1px solid #808080;
    box-shadow: 1px 1px 1px #808080;
}

.tblconfirm tr th
{
    display: none;
}
.tblconfirm
{
    width: 100%;
}
.tblconfirm td:first-child
{
    background-color: #E4E4E4;
    width: 30%;
    text-align: right;
}
.tblconfirm td:last-child
{
    background-color: #E4E4E4;
    font-weight: bold;
}
.number
{
}
.alphabet
{
}

.fright
{
    float: right;
}
.fleft
{
    float: left;
}
.aright
{
    text-align: right;
}
.aleft
{
    text-align: left;
}
.nic
{
}
#printbtn
{
    background-image: url("../images/print_32.png");
    background-position: left center;
    background-repeat: no-repeat;
    border: 2px solid #D2DA41;
    border-radius: 6px 6px 6px 6px;
    color: green;
    font-family: calibri;
    font-size: 21px;
    font-weight: bold;
    padding: 3px 40px;
    text-align: center;
    text-decoration: none;

}
#printbtn:hover
{
    background-color: #F1F3C2;
    border-color: #F0F000;
}
.validator-error
{
    border-color:Red;
    }


    .test
{
    background-color: #FFF2F2;
}

菜单样式

.grid_12 {
    display: inline;
    float: left;
    margin-left: 5px;
    margin-right: 20px;
    position: relative;
}
#ns_nav-main li li.ns_last {
    border-bottom: 1px solid #009BE2;
}
#ns_nav-sub-wrap {
    border: 1px solid #CCCCCC;
    display: block;
    margin-bottom: 10px;
    margin-top: 10px;
    position: relative;
    z-index: 2;
}
#ns_nav-sub {
    font-family: Calibri,Arial;
    font-size: 14px;
    list-style: none outside none;
}
#ns_nav-sub a:hover {
  background-color:#dfe473;

    color:#4b4b4d;
    text-decoration: none;
}
#ns_nav-sub li:first-child a:hover {
   background-color:#dfe473;


    color:#4b4b4d;
    text-decoration: none;
    border-radius: 5px 0 0 5px;
}
#ns_nav-sub li li:first-child a:hover
{
    border-radius: 0px;

    }
#ns_nav-sub li {
    border-left: 1px solid #CCCCCC;
    float: left;
    margin: 0;
    position: relative;
}
#ns_nav-sub li.ns_first {
    border-left: 0 none;
}
#ns_nav-sub li a {
border-left:none;
    color: #FFFFFF;
    cursor: pointer;
    display: block;
    padding: 10px 20px;
    text-decoration: none;
    font-weight:bold;
}
#ns_nav-sub li:hover, #ns_nav-sub li.selected, #ns_nav-sub li.over
{
    /* background: none repeat scroll 0 0 #EFEFEF;*/
    text-decoration: none;

}
#ns_nav-sub .ns_icon-tiny {
    background-position: -1000px -17px;
    position: absolute;
    right: 12px;
    top: 22px;
}
#ns_nav-sub li ul {
    -moz-border-bottom-colors: none;
    -moz-border-image: none;
    -moz-border-left-colors: none;
    -moz-border-right-colors: none;
    -moz-border-top-colors: none;

    background-color:#468B6A;
    border-color: #CCC;
    border-style: none solid solid;
    border-width: 0 1px 1px;
    display: none;
    list-style: none outside none;
    margin-left: -1px;
    position: absolute;
    width: 200px;
    z-index: 10;
}
#ns_nav-sub li:hover ul, #ns_nav-sub li.over ul {
    display: block;
}
#ns_nav-sub li li {
    border-left: 0 none;
    border-top: 1px solid #CCCCCC;
    width: 100%;
}
#ns_nav-sub li li a {
    padding-bottom: 10px;
    padding-top: 10px;
}
#ns_nav-sub li li a:hover {
      background-color:#dfe473;

    color:#4b4b4d;

}
#ns_nav-sub li li:last-child a:hover {
       background-color:#dfe473;
    color:#4b4b4d;
    border-radius: 0 0 5px 5px;
}

.ns_round, a.ns_btn-small, a.ns_btn, a.ns_btn-big, .ns_box, .ns_form button, #ns_box-login, .ns_selector, #ns_top-right .ns_logged-in .ns_bnote, .ns_generic, #ns_nav-sub-wrap, .ns_form input[type="file"], .ns_form input, .ns_form textarea, .ns_form select, .contest_stats, .ns_bubble, .ns_form .ns_radio-btn li, .ns_checkbox-big li, ul.ns_list-box-5 li a, ul.ns_logo-type li, button.ns_btn, ul.ns_list-box-4 li a, .ns_pagination span, .ns_pagination a, .ns_pagination .current.prev, ul.ns_list-box-3 li, table.ns_generic, .ns_code, .ns_tooltip, ul.ns_contest-type li span.ns_icon, .ns_landing-page .ns_contest-panel, .ns_contest-table, .ns_gallery li.ns_entry, ul.ns_milestones li, .ns_contact-pic, ul.ns_skills-bubble li, .ns_designstudio-hiw, .ns_status-box, .ns_level-up, ul.ns_sub-balance, .ns_toggle.ns_expand, .ns_toggle.ns_collapse, .ns_profile-pic, .ns_avg-rating {
    border-radius: 6px 6px 6px 6px;
}
.ns_round-bottom, #ns_nav-main li ul, .ns_fancy-panel, #ns_nav-sub li ul, #ns_nav-sub li ul li.ns_last a:hover, #ns_nav-main li li.ns_last, #ns_nav-main li li.ns_last a:hover, .ns_total, table.ns_generic, .ns_box-half.ns_box-bottom {
    border-bottom-left-radius: 6px;
    border-bottom-right-radius: 6px;
}
.ns_round-top, .ns_box .ns_top, .ns_login-on, .ns_price-box, #ns_box-country, .ns_box-half.ns_box-top, .ns_avg-rating h2 {
    border-radius: 6px 6px 0 0;
}
.ns_round-top-left, table.ns_contest th:first-child, table.ns_generic th:first-child, .dataTable thead tr th:first-child, .ns_notify.ns_generic .ns_sidebar, .ns_table th:first-child, .ns_gamification-dropdown {
    border-top-left-radius: 6px;
}
.ns_round-top-right, table.ns_contest th:last-child, table.ns_generic th:last-child, .dataTable thead tr th:last-child, .ns_table th:last-child, #ns_nav-sub li.ns_last a:hover {
    border-top-right-radius: 6px;
}
.ns_round-bottom-right, ul.ns_gallery .ns_num, #ns_nav-sub li.ns_last a:hover, .ns_gamification-dropdown {
    border-bottom-right-radius: 6px;
}
.ns_round-bottom-left, .ns_zoom-btn, .ns_notify.ns_generic .ns_sidebar, .ns_gamification-dropdown {
    border-bottom-left-radius: 6px;
}
.ns_round-left, #ns_banner .ns_ebook input, #ns_searchbox {
    border-radius: 6px 0 0 6px;
}
.ns_round-right, #ns_banner .ns_ebook button, .ns_btn.ns_openid .ns_status.ns_selected {
    border-radius: 0 6px 6px 0;
}
.ns_round-3, .ns_form input[type="file"], .ns_form input, .ns_form textarea, .ns_form select, .ns_notify, .ns_contacts.ns_search-box, ul.ns_filter li.ns_current, .ns_close, .ns_rate-bubble {
    border-radius: 3px 3px 3px 3px;
}
ul.ns_sidenav li.selected a:hover {
    color: #FFFFFF !important;
}
ul.ns_sidenav li a {
    color: #333333;
    height: 44px;
    line-height: 40px;
    padding-left: 20px;
}
ul.ns_sidenav li a:hover {
    color: #008BCB !important;
    text-decoration: none !important;
}
dt, ul {
    list-style-type: disc;
    margin: 0;
    padding: 0;
}
ul.list-style-none, ul.list-style-none li {
    list-style-type: none;
}

我们将不胜感激。

谢谢。

Answer 1

实际上我有时在 Chrome 中遇到完全相同的错误，除了我网站主题的黄色。通常它发生在元素出现或消失时，通常是自定义工具提示，有时只需移动鼠标即可修复它。

我得出结论，这是 Chrome 渲染引擎中的一个错误，我们所能做的就是希望他们尽快修复它。