eam-offline-app/static-eam-app/css/common.css

input[readonly] {
    background-color:#f1f1f5;
}
textarea[readonly] {
    background-color:#f1f1f5;
}
input[disabled] {
    background-color:#f1f1f5;
}
button[disabled] {
    background-color:#f1f1f5;
}