css制作简洁实用搜索框样式代码如下：

body,
input,
button {
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}
.container { margin: 300px auto 40px auto; width: 800px; text-align: center; }
a { color: #4183c4; text-decoration: none; font-weight: bold; }
a:hover { text-decoration: underline; }
h3 { color: #666; }
ul { list-style: none; padding: 25px 0; }
li {
display: inline;
margin: 10px 50px 10px 0px;
}
input[type=text],
input[type=password] {
font-size: 13px;
min-height: 32px;
margin: 0;
padding: 7px 8px;
outline: none;
color: #333;
background-color: #fff;
background-repeat: no-repeat;
background-position: right center;
border: 1px solid #ccc;
border-radius: 3px;
box-shadow: inset 0 1px 2px rgba(0,0,0,0.075);
-moz-box-sizing: border-box;
box-sizing: border-box;
transition: all 0.15s ease-in;
-webkit-transition: all 0.15s ease-in 0;
vertical-align: middle;
}
.button {
position: relative;
display: inline-block;
margin: 0;
padding: 8px 15px;
font-size: 13px;
font-weight: bold;
color: #333;
text-shadow: 0 1px 0 rgba(255,255,255,0.9);
white-space: nowrap;
background-color: #eaeaea;
background-image: -moz-linear-gradient(#fafafa, #eaeaea);
background-image: -webkit-linear-gradient(#fafafa, #eaeaea);
background-image: linear-gradient(#fafafa, #eaeaea);
background-repeat: repeat-x;
border-radius: 3px;
border: 1px solid #ddd;
border-bottom-color: #c5c5c5;
box-shadow: 0 1px 3px rgba(0,0,0,.05);
vertical-align: middle;
cursor: pointer;
-moz-box-sizing: border-box;
box-sizing: border-box;
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
-webkit-appearance: none;
}
.button:hover,
.button:active {
background-position: 0 -15px;
border-color: #ccc #ccc #b5b5b5;
}
.button:active {
background-color: #dadada;
border-color: #b5b5b5;
background-image: none;
box-shadow: inset 0 3px 5px rgba(0,0,0,.15);
}
.button:focus,
input[type=text]:focus,
input[type=password]:focus {
outline: none;
border-color: #51a7e8;
box-shadow: inset 0 1px 2px rgba(0,0,0,.075), 0 0 5px rgba(81,167,232,.5);
}

label[for=search] {
display: block;
text-align: left;
}
#search label {
font-weight: 200;
padding: 5px 0;
}
#search input[type=text] {
font-size: 18px;
width: 705px;
}
#search .button {
padding: 10px;
width: 90px;
}