:root {
     --header-height: 70px;
     --offset:70px;
}

html
{

     font-family: "Helvetica Neue", Arial, Helvetica, sans-serif;

}
body,html
{
     margin: 0;
     padding: 0;
}
.default-form
{

}
header {
     position: fixed;
     top: 0;
     z-index: 10000;
     width: 100%; /* overflow-y:auto; */
     background-color: white;
}
main {
     margin-top: var(--header-height);
     background-color: white;
     margin-left: auto;
     margin-right: auto;

}