* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-size: 14px;
    background-color: white;
    font-family: sans-serif;
    color:black;
    width:100%;
    margin:0 auto;
    padding: 0;
    position: relative;
}
/* header */
header {
    height:90px;
    line-height: 90px;
    vertical-align: middle;
    clear: both;
    overflow: hidden;
}

header .logo {
    float: left;
}

.clearfix {
    clear: both;
}

main {
    margin: 0 auto;
    display: block;
    text-align: center;
}

a {
    width: 100%;
    text-decoration: none;
    color: black;
}

.login-btn-container {
    width: 220px;
    height: 35px;
    border: 1px solid rgb(20, 19, 19);
    background: white;
    padding: 10px 17px;
    font-size: 13px;
    border-radius: 5px;
    margin: 0 auto;
    cursor: pointer;
    border-width: 1px;
    border-style: inset;
    margin-top: 25px;
}
div.logo {
    margin-left: 18px;
}