My custom CSS for Nextcloud

NextcloudCustom.css

#header:not(div) {
    background: -moz-linear-gradient(top, #275983 0%, #1c3e5d 100%) !important;
    background: -webkit-linear-gradient(top, #275983 0%,#1c3e5d 100%) !important;
    background: linear-gradient(to bottom, #275983 0%,#1c3e5d 100%) !important;
}

.v-align #header { background: none }

.primary {
    border-radius: 4px !important;
    font-size: 16px;
    padding: 5px 10px 5px 10px;
    line-height: 20px;
    font-weight: lighter;
    -webkit-appearance: none;
    appearance: none;
    background: -moz-linear-gradient(top, #497aa1 0%, #21557f 100%);
    background: -webkit-linear-gradient(top, #497aa1 0%, #21557f 100%);
    background: linear-gradient(to bottom, #497aa1 0%, #21557f 100%);
    -webkit-box-shadow: 0px 1px 0px 0px #67a3d4 inset;
    -moz-box-shadow: 0px 1px 0px 0px #67a3d4 inset;
    box-shadow: 0px 1px 0px 0px #67a3d4 inset;
    color: #fff;
    border: 1px solid #21557f !important;
    text-shadow: 0px 1px 1px #21557f
}

.primary:hover {
    -webkit-box-shadow: 0px 1px 0px 0px #3886c6 inset;
    -moz-box-shadow: 0px 1px 0px 0px #3886c6 inset;
    box-shadow: 0px 1px 0px 0px #3886c6 inset;
}

.primary:active {
    -webkit-box-shadow: 0px 1px 5px 0px #24567e inset;
    -moz-box-shadow: 0px 1px 5px 0px #24567e inset;
    box-shadow: 0px 1px 5px 0px #24567e inset
}

input[type=text],
input[type=url],
input[type=password],
textarea {
    border: 1px solid #ccc;
    transition: box-shadow .45s, border-color .45s;
    border-radius: 5px;
    font-size: 16px;
    -webkit-appearance: none;
    appearance: none;
    background-color: #fff;
}

input[type=text]:hover,
input[type=url]:hover,
input[type=password]:hover,
textarea:hover {
    -webkit-box-shadow: 0px 0px 1px 0px #8c8c8c;
    -moz-box-shadow: 0px 0px 1px 0px #8c8c8c;
    box-shadow: 0px 0px 1px 0px #8c8c8c;
    border-color: #8c8c8c
}

input[type=text]:focus,
input[type=url]:focus,
input[type=password]:focus,
textarea:focus {
    -webkit-box-shadow: 0px 0px 2px 0px #3299ff;
    -moz-box-shadow: 0px 0px 2px 0px #3299ff;
    box-shadow: 0px 0px 2px 0px #3299ff;
    border-color: #3299ff;
    outline: none
}