Навигация темными кнопками

HTML

<ul class="button-list">
    <li><a href='/' class='button'>Главная</a></li>
    <li><a href='/' class='button'>Информация</a></li>
    <li><a href='/' class='button'>Портфолио</a></li>
    <li><a href='/' class='button'>Блог</a></li>
    <li class="search"><input type="text" class="search-input" name="search" value="Поиск" onclick="$(this).val('');" /><input type="submit" class="search-submit" /></li>
</ul>
<h3>Вертикальное меню:</h3>
<ul class="vertical-list">
    <li><a href='/' class='button'>Главная</a></li>
    <li><a href='/' class='button'>Форум</a></li>
    <li><a href='/' class='button'>Портфолио</a></li>
    <li><a href='/' class='button'>Блог</a></li>
    <li><a href='/' class='button'>Регистрация</a></li>
</ul>

CSS

/* Dark Button CSS */
.button {
    outline: 0;
    padding: 5px 12px;
    display: block;
    color: #9fa8b0;
    font-weight: bold;
    text-shadow: 1px 1px #1f272b;
    border: 1px solid #1c252b;
    border-radius: 3px;
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
    background: #232B30; /* old browsers */
    background: -moz-linear-gradient(top, #3D4850 3%, #313d45 4%, #232B30 100%); /* firefox */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(3%,#3D4850), color-stop(4%,#313d45), color-stop(100%,#232B30)); /* webkit */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#3D4850', endColorstr='#232B30',GradientType=0 ); /* ie */
    box-shadow: 1px 1px 1px rgba(0,0,0,0.2); /* CSS3 */
    -moz-box-shadow: 1px 1px 1px rgba(0,0,0,0.2); /* Firefox */
    -webkit-box-shadow: 1px 1px 1px rgba(0,0,0,0.2); /* Safari, Chrome */
}
.button:hover {
    color: #fff;
    background: #4C5A64; /* old browsers */
    background: -moz-linear-gradient(top, #4C5A64 3%, #404F5A 4%, #2E3940 100%); /* firefox */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(3%,#4C5A64), color-stop(4%,#404F5A), color-stop(100%,#2E3940)); /* webkit */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#4C5A64', endColorstr='#2E3940',GradientType=0 ); /* ie */
}
.button:active {
    background-position: 0 top;
    position: relative;
    top: 1px;
    color: #fff;
    padding: 6px 12px 4px;
    background: #20282D; /* old browsers */
    background: -moz-linear-gradient(top, #20282D 3%, #252E34 51%, #222A30 100%); /* firefox */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(3%,#20282D), color-stop(51%,#252E34), color-stop(100%,#222A30)); /* webkit */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#20282D', endColorstr='#222A30',GradientType=0 ); /* ie */
    -moz-box-shadow: 1px 1px 1px rgba(255,255,255,0.1); /* Firefox */
    -webkit-box-shadow: 1px 1px 1px rgba(255,255,255,0.1); /* Safari, Chrome */
    box-shadow: 1px 1px 1px rgba(255,255,255,0.1); /* CSS3 */
}
/* Search CSS: */
.search-input {
    padding: 0 5px 0 22px;
    border: 1px solid #1c252b;
    height: 30px;
    color: #9fa8b0;
    font-size: 12px;
    line-height: 30px;
    font-weight: bold;
    text-shadow: 1px 1px #1f272b;
    border-radius: 25px;
    -moz-border-radius: 25px;
    -webkit-border-radius: 25px;
    background: #20282D; /* old browsers */
    background: -moz-linear-gradient(top, #20282D 3%, #252E34 51%, #222A30 100%); /* firefox */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(3%,#20282D), color-stop(51%,#252E34), color-stop(100%,#222A30)); /* webkit */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#20282D', endColorstr='#222A30',GradientType=0 ); /* ie */
    -moz-box-shadow: 1px 1px 1px rgba(255,255,255,0.1); /* Firefox */
    -webkit-box-shadow: 1px 1px 1px rgba(255,255,255,0.1); /* Safari, Chrome */
    box-shadow: 1px 1px 1px rgba(255,255,255,0.1); /* CSS3 */
}
.search-input:focus {outline: none;}
.search-submit {
    width: 13px;
    height: 13px;
    border: none;
    background: url(mag-glass.png) no-repeat;
    display: block;
    position: absolute;
    left: 26px;
    top: 10px;
    text-indent: -9999em;
}
/* Vertical List: */
.vertical-list {
    list-style: none;
    padding: 10px;
    width: 200px;
    border-radius: 5px;
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    background: #20282D; /* old browsers */
    background: -moz-linear-gradient(top, #20282D 3%, #252E34 51%, #222A30 100%); /* firefox */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(3%,#20282D), color-stop(51%,#252E34), color-stop(100%,#222A30)); /* webkit */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#20282D', endColorstr='#222A30',GradientType=0 ); /* ie */
    -moz-box-shadow: 1px 1px 1px rgba(255,255,255,0.1); /* Firefox */
    -webkit-box-shadow: 1px 1px 1px rgba(255,255,255,0.1); /* Safari, Chrome */
    box-shadow: 1px 1px 1px rgba(255,255,255,0.1); /* CSS3 */
}
.vertical-list .button {
    border-radius: 5px;
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    background: #515B62; /* old browsers */
    background: -moz-linear-gradient(top, #515B62 3%, #444E55 5%, #394147 100%); /* firefox */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(3%,#515B62), color-stop(5%,#444E55), color-stop(100%,#394147)); /* webkit */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#515B62', endColorstr='#394147',GradientType=0 ); /* ie */
}
.vertical-list .button:hover {
    background: #5F6B72; /* old browsers */
    background: -moz-linear-gradient(top, #5F6B72 3%, #56646C 4%, #4D5A62 50%, #434D54 100%); /* firefox */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(3%,#5F6B72), color-stop(4%,#56646C), color-stop(50%,#4D5A62), color-stop(100%,#434D54)); /* webkit */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#5F6B72', endColorstr='#434D54',GradientType=0 ); /* ie */
}
.vertical-list .button:active {
    padding: 5px 12px;
    top: 0;
    background: #515B62; /* old browsers */
    background: -moz-linear-gradient(top, #515B62 3%, #444E55 5%, #394147 100%); /* firefox */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(3%,#515B62), color-stop(5%,#444E55), color-stop(100%,#394147)); /* webkit */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#515B62', endColorstr='#394147',GradientType=0 ); /* ie */       -moz-box-shadow: 1px 1px 1px rgba(255,255,255,0.1); /* Firefox */
    -moz-box-shadow: 1px 1px 1px rgba(0,0,0,0.2); /* Firefox */
    -webkit-box-shadow: 1px 1px 1px rgba(0,0,0,0.2); /* Safari, Chrome */
    box-shadow: 1px 1px 1px rgba(0,0,0,0.2); /* CSS3 */
}