问题是搜索按钮出现在下一行而不是 pf 侧输入，这仅在 ie7 中，在所有浏览器中都可以正常工作 #search-form { background: #e1e1e1; /* 非 css3 浏览器的后备颜色 */ width: 365px;
/* Gradients */
background: -webkit-gradient( linear,left top, left bottom, color-stop(0, rgb(243,243,243)), color-stop(1, rgb(225,225,225)));
background: -moz-linear-gradient( center top, rgb(243,243,243) 0%, rgb(225,225,225) 100%);
/* Rounded Corners */
border-radius: 17px;
-webkit-border-radius: 17px;
-moz-border-radius: 17px;
/* Shadows */
box-shadow: 1px 1px 2px rgba(0,0,0,.3), 0 0 2px rgba(0,0,0,.3);
-webkit-box-shadow: 1px 1px 2px rgba(0,0,0,.3), 0 0 2px rgba(0,0,0,.3);
-moz-box-shadow: 1px 1px 2px rgba(0,0,0,.3), 0 0 2px rgba(0,0,0,.3);
}
/*** TEXT BOX ***/
input[type="text"]{
background: #fafafa; /* Fallback color for non-css3 browsers */
/* Gradients */
background: -webkit-gradient( linear, left bottom, left top, color-stop(0, rgb(250,250,250)), color-stop(1, rgb(230,230,230)));
background: -moz-linear-gradient( center top, rgb(250,250,250) 0%, rgb(230,230,230) 100%);
border: 0;
border-bottom: 1px solid #fff;
border-right: 1px solid rgba(255,255,255,.8);
font-size: 16px;
margin: 4px;
padding: 5px;
width: 250px;
/* Rounded Corners */
border-radius: 17px;
-webkit-border-radius: 17px;
-moz-border-radius: 17px;
/* Shadows */
box-shadow: -1px -1px 2px rgba(0,0,0,.3), 0 0 1px rgba(0,0,0,.2);
-webkit-box-shadow: -1px -1px 2px rgba(0,0,0,.3), 0 0 1px rgba(0,0,0,.2);
-moz-box-shadow: -1px -1px 2px rgba(0,0,0,.3), 0 0 1px rgba(0,0,0,.2);
}
/*** USER IS FOCUSED ON TEXT BOX ***/
input[type="text"]:focus{
outline: none;
background: #fff; /* Fallback color for non-css3 browsers */
/* Gradients */
background: -webkit-gradient( linear, left bottom, left top, color-stop(0, rgb(255,255,255)), color-stop(1, rgb(235,235,235)));
background: -moz-linear-gradient( center top, rgb(255,255,255) 0%, rgb(235,235,235) 100%);
}
/*** SEARCH BUTTON ***/
input[type="submit"]{
background: #44921f;/* Fallback color for non-css3 browsers */
/* Gradients */
background: -webkit-gradient( linear, left top, left bottom, color-stop(0, rgb(79,188,32)), color-stop(0.15, rgb(73,157,34)), color-stop(0.88, rgb(62,135,28)), color-stop(1, rgb(49,114,21)));
background: -moz-linear-gradient( center top, rgb(79,188,32) 0%, rgb(73,157,34) 15%, rgb(62,135,28) 88%, rgb(49,114,21) 100%);
border: 0;
color: #eee;
cursor: pointer;
float: right;
font: 16px Arial, Helvetica, sans-serif;
font-weight: bold;
height: 30px;
margin: 4px 4px 0;
text-shadow: 0 -1px 0 rgba(0,0,0,.3);
width: 84px;
outline: none;
/* Rounded Corners */
border-radius: 30px;
-webkit-border-radius: 30px;
-moz-border-radius: 30px;
/* Shadows */
box-shadow: -1px -1px 1px rgba(255,255,255,.5), 1px 1px 0 rgba(0,0,0,.4);
-moz-box-shadow: -1px -1px 1px rgba(255,255,255,.5), 1px 1px 0 rgba(0,0,0,.2);
-webkit-box-shadow: -1px -1px 1px rgba(255,255,255,.5), 1px 1px 0 rgba(0,0,0,.4);
}
/*** SEARCH BUTTON HOVER ***/
input[type="submit"]:hover {
background: #4ea923; /* Fallback color for non-css3 browsers */
/* Gradients */
background: -webkit-gradient( linear, left top, left bottom, color-stop(0, rgb(89,222,27)), color-stop(0.15, rgb(83,179,38)), color-stop(0.8, rgb(66,143,27)), color-stop(1, rgb(54,120,22)));
background: -moz-linear-gradient( center top, rgb(89,222,27) 0%, rgb(83,179,38) 15%, rgb(66,143,27) 80%, rgb(54,120,22) 100%);
}
input[type="submit"]:active {
background: #4ea923; /* Fallback color for non-css3 browsers */
/* Gradients */
background: -webkit-gradient( linear, left bottom, left top, color-stop(0, rgb(89,222,27)), color-stop(0.15, rgb(83,179,38)), color-stop(0.8, rgb(66,143,27)), color-stop(1, rgb(54,120,22)));
background: -moz-linear-gradient( center bottom, rgb(89,222,27) 0%, rgb(83,179,38) 15%, rgb(66,143,27) 80%, rgb(54,120,22) 100%);
}