html{ height: 100%; }
form { margin:0; }
.main_header{
    height:100vh;
    background:radial-gradient(ellipse at center, #a6eff352 0%, #b5d6f6 100%);
    background-repeat:no-repeat;
}
.button_1{
    background-color: #36405e;
}
.ins_h3{
    margin-left:25px; margin-top: 10px; text-align: center;
}
.ins_1{
    width: 15%; height: 15%;
}
.ins_2{
    margin-left:25px;
}
.ins_3{
    margin-left:25px; margin-right:25px;
}
.ins_4{
    width: 100%;
}
.ins_4_{
    width: 95%;
}
.ins_5{
    width: 100%; margin-left:25px; margin-top: 10px;
}
.ins_6{
    text-align: center;
}
.ins_7{
    margin-left:25px; text-align: center;;
}
.ins_8{
    margin-top: 10px
}
.ins_9{
    font-weight:bold; letter-spacing:1px;
}
.ins_10{
    margin-left:25px; margin-right: 50px; width: 90%; padding: 10px; border-radius: 5px; border: 1px solid #b5d6f6;
}

.ins_11{
    margin-left:25px; margin-right: 50px; margin-top: 10px; width: 90%; padding: 10px; border-radius: 5px; border: 1px solid #b5d6f6;
}
.ins_12{
    width: 100%;margin-top: 10px;
}
.ins_13{
    margin-left:25px; margin-right: 25px;
}
.ins_14{
    margin-left:25px;margin-right:25px;
}
.color_red{
    color:red !important;
}
.blink {
    animation: blinker 2s linear infinite;
}
@keyframes blinker {
    50% { opacity: 0; }
}
.btn_disable{
    pointer-events: none;
}