.rez-form {
    width: 40%;
    margin: auto;
    background-color: #ffffff !important;
    padding: 20px !important;
    border-radius: 10px !important;
    box-shadow: 0 4px 12px #0093ff26 !important;
    /* margin: 8px 0 8px !important; */
}
/* -------------------------------------------------------------------------- */
/*                                   loader                                   */
/* -------------------------------------------------------------------------- */
/* <span class='loader'></span> */
.loader {
    width: 20px;
    height: 15px;
    display: inline-block;
    position: relative;
}
.loader::after,
.loader::before {
    content: '';
    box-sizing: border-box;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid #FFF;
    position: absolute;
    left: 0;
    top: 0;
    animation: animloader 2s linear infinite;
}
.loader::after {
    animation-delay: 1s;
}
@keyframes animloader {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 0;
    }
}
/* -------------------------------------------------------------------------- */
/*                                     tab                                    */
/* -------------------------------------------------------------------------- */
/* <div class="tab"><button class="tablinks" onclick="openCity(event, 'div_category')">دسته بندی</button><button class="tablinks" onclick="openCity(event, 'div_reset')">ریست وضعیت</button></div><div class="tabcontent" id="div_category"><p>upd</p></div><div class="tabcontent" id="div_reset"><p>res</p></div> */
.tab {
    overflow: hidden;
    border: 1px solid #ccc;
    background-color: #f1f1f1;
}
/* Style the buttons inside the tab */
.tab button {
    background-color: inherit;
    float: right;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 8px 12px;
    transition: 0.3s;
    font-size: 13px;
}
/* Change background color of buttons on hover */
.tab button:hover {
    background-color: #ddd;
}
/* Create an active/current tablink class */
.tab button.active {
    background-color: #ccc;
}
/* Style the tab content */
.tabcontent {
    display: none;
    padding: 6px 12px;
    border: 1px solid #ccc;
    border-top: none;
    overflow: auto;
}
/* Fade in Tabs */
.tabcontent {
    animation: fadeEffect 1s;
    /* Fading effect takes 1 second */
}
/* Go from zero to full opacity */
@keyframes fadeEffect {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}
/* -------------------------------------------------------------------------- */
/*                                  btn-group                                 */
/* -------------------------------------------------------------------------- */
.btn-group {
    position: relative;
    display: block;
    vertical-align: middle;
}
.btn-group button {
    background-color: #5a5a5a;
    /* Green background */
    border: 1px solid #ffffff;
    /* Green border */
    color: white;
    /* White text */
    padding: 5px 35px;
    /* Some padding */
    cursor: pointer;
    /* Pointer/hand icon */
    float: left;
    /* Float the buttons side by side */
}
.btn-group button:not(:last-child) {
    border-right: none;
    /* Prevent double borders */
}
/* Clear floats (clearfix hack) */
.btn-group:after {
    content: "";
    clear: both;
    display: table;
}
/* Add a background color on hover */
.btn-group button:hover {
    background-color: #f37f37;
}
/* Add a background color on hover */
.btn-group button:focus {
    /* background-color: #3e8e41; */
}