Строка поиска не становится шире

* {
margin: 0;
padding: 0;
}

input[type="text"], input[type="password"], input[type="search"] {
color: #5d5d5d;
width: 60%;
padding: 8px;
}

input, textarea {
outline: none;
border: none;
border: solid 1px #f2f2f2;
}

.header{
background-color: darkslateblue;
height: 177px;
font-size: 0.8em;
margin-left: 0px;
margin-right: 0px;
min-width: 900px;
}

.main, .logo, .menudar, .site_content, .footer {
margin-left: auto;
margin-right: auto;
}

.logo {
width: 880px;
padding-bottom: 40px;

}
.logo h1, .logo h2 {
font: normal 300% 'centyry gothic', arial, sans-serif;
margin: 0 0 0 9px;
}

.logo_text h1, .logo_text h1 a, .logo_text h1 a:hover {
padding: 22px 0 0 0;
color: #fff;
letter-spacing: 0.1em;
text-decoration: none;
}

.logo_text h2 {
font-size: 0.9em
padding: 4px 0 0 0;
color: #999;
}

.menudar {
width: 900px;
height: 50px;
}
ul.menu {
float: right;
}

ul.menu li {
float: left;
padding: 0 0 0 9px;
list-style: none;
margin: 1px 2px 0 0;
}

ul.menu li a {
font: normal 100% 'trebuchet ms', sans-serif;
display: block;
height: 20px;
padding: 6px 35px 5px 28px;
color: #fff;
text-decoration: none;
}

ul.menu li.selected a {
color: #aeb002;
}

ul.menu li a:hover {
color: #e4ec04;
}

.site_content {
width: 880px;
overflow: hidden;
margin: 20px auto 0 auto;
background-color: white;
}

.sidebar_container {
float: right;;
width: 224px;
}

.sidebar {
float: right;
width: 222px;
padding: 5%;
margin: 0 0 16px 0;
border: solid 1px #f2f2f2;
border-radius: 5px;
background-color: #f9f9f9;
}
.btn {
padding: 8px;
background-color: white;
cursor:pointer;
}