File: style.css

form {
    margin-bottom: 20px; 
}
fieldset {
    margin-bottom: 20px; 
}
input[type="text"],
input[type="password"],
input[type="email"],
textarea,
select {
    border: 1px solid #ccc;
    padding: 6px 4px;
    outline: none;
    -moz-border-radius: 2px;
    -webkit-border-radius: 2px;
    border-radius: 2px;
    font: 13px "HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #777;
    margin: 0;
    width: 210px;
    max-width: 100%;
    display: block;
    margin-bottom: 20px;
    background: #fff; 
}
select {
    padding: 0; 
}
input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
textarea:focus {
    border: 1px solid #aaa;
    color: #444;
    -moz-box-shadow: 0 0 3px rgba(0,0,0,.2);
    -webkit-box-shadow: 0 0 3px rgba(0,0,0,.2);
    box-shadow:  0 0 3px rgba(0,0,0,.2); 
}
textarea {
    min-height: 60px; 
}
label,
legend {
    display: block;
    font-weight: bold;
    font-size: 13px;  
}
select {
    width: 220px; 
}
input[type="checkbox"] {
    display: inline; 
}
label span,
legend span {
    font-weight: normal;
    font-size: 13px;
    color: #444; 
}
.button,
button,
input[type="submit"],
input[type="reset"],
input[type="button"] {
    background: #eee; /* Old browsers */
    background: #eee -moz-linear-gradient(top, rgba(255,255,255,.2) 0%, rgba(0,0,0,.2) 100%); /* FF3.6+ */
    background: #eee -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(255,255,255,.2)), color-stop(100%,rgba(0,0,0,.2))); /* Chrome,Safari4+ */
    background: #eee -webkit-linear-gradient(top, rgba(255,255,255,.2) 0%,rgba(0,0,0,.2) 100%); /* Chrome10+,Safari5.1+ */
    background: #eee -o-linear-gradient(top, rgba(255,255,255,.2) 0%,rgba(0,0,0,.2) 100%); /* Opera11.10+ */
    background: #eee -ms-linear-gradient(top, rgba(255,255,255,.2) 0%,rgba(0,0,0,.2) 100%); /* IE10+ */
    background: #eee linear-gradient(top, rgba(255,255,255,.2) 0%,rgba(0,0,0,.2) 100%); /* W3C */
    border: 1px solid #aaa;
    border-top: 1px solid #ccc;
    border-left: 1px solid #ccc;
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
    border-radius: 3px;
    color: #444;
    display: inline-block;
    font-size: 11px;
    font-weight: bold;
    text-decoration: none;
    text-shadow: 0 1px rgba(255, 255, 255, .75);
    cursor: pointer;
    margin-bottom: 20px;
    line-height: normal;
    padding: 8px 10px;
    font-family: "HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif; 
}

.button:hover,
button:hover,
input[type="submit"]:hover,
input[type="reset"]:hover,
input[type="button"]:hover {
    color: #222;
    background: #ddd; /* Old browsers */
    background: #ddd -moz-linear-gradient(top, rgba(255,255,255,.3) 0%, rgba(0,0,0,.3) 100%); /* FF3.6+ */
    background: #ddd -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(255,255,255,.3)), color-stop(100%,rgba(0,0,0,.3))); /* Chrome,Safari4+ */
    background: #ddd -webkit-linear-gradient(top, rgba(255,255,255,.3) 0%,rgba(0,0,0,.3) 100%); /* Chrome10+,Safari5.1+ */
    background: #ddd -o-linear-gradient(top, rgba(255,255,255,.3) 0%,rgba(0,0,0,.3) 100%); /* Opera11.10+ */
    background: #ddd -ms-linear-gradient(top, rgba(255,255,255,.3) 0%,rgba(0,0,0,.3) 100%); /* IE10+ */
    background: #ddd linear-gradient(top, rgba(255,255,255,.3) 0%,rgba(0,0,0,.3) 100%); /* W3C */
    border: 1px solid #888;
    border-top: 1px solid #aaa;
    border-left: 1px solid #aaa; 
}

.button:active,
button:active,
input[type="submit"]:active,
input[type="reset"]:active,
input[type="button"]:active {
    border: 1px solid #666;
    background: #ccc; /* Old browsers */
    background: #ccc -moz-linear-gradient(top, rgba(255,255,255,.35) 0%, rgba(10,10,10,.4) 100%); /* FF3.6+ */
    background: #ccc -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(255,255,255,.35)), color-stop(100%,rgba(10,10,10,.4))); /* Chrome,Safari4+ */
    background: #ccc -webkit-linear-gradient(top, rgba(255,255,255,.35) 0%,rgba(10,10,10,.4) 100%); /* Chrome10+,Safari5.1+ */
    background: #ccc -o-linear-gradient(top, rgba(255,255,255,.35) 0%,rgba(10,10,10,.4) 100%); /* Opera11.10+ */
    background: #ccc -ms-linear-gradient(top, rgba(255,255,255,.35) 0%,rgba(10,10,10,.4) 100%); /* IE10+ */
    background: #ccc linear-gradient(top, rgba(255,255,255,.35) 0%,rgba(10,10,10,.4) 100%); /* W3C */ 
}

.button.full-width,
button.full-width,
input[type="submit"].full-width,
input[type="reset"].full-width,
input[type="button"].full-width {
    width: 100%;
    padding-left: 0 !important;
    padding-right: 0 !important;
    text-align: center; 
}

/* Fix for odd Mozilla border & padding issues */
button::-moz-focus-inner,
input::-moz-focus-inner {
    border: 0;
    padding: 0;
}