body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    /*background-color: #252440;*/
}

#main {
    margin-top: 55px;
    padding: 0px;
}

.principal {
    position: absolute;
    top: calc(95% - 70%);
    font-size: 4rem;
    font-weight: bold;
    width: 100%;
    text-align: center;
}

.principal span.desc {
    display: inline-block;
    width: 80%;
    font-size: 24px;
    font-weight: normal;
    height: auto;
    /*background: #252440;*/
}


.card {
    color: #252440;
}

.text-header{
    font-size: 24px;
    font-weight: bold;
}

.btn-wsp{
    position: fixed;
    width: 55px;
    height: 55px;
    line-height: 55px;
    bottom: 30px;
    right: 30px;
    background: #0df053;
    color: #fff;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 0px 1px 10px rgba(0,0,0,0.3);
    z-index: 100;
}

.btn-wsp:hover {
    text-decoration: none;
    color: #0df053;
    background: #fff;
}

@media only screen and (min-width:320px) and (max-width:768px){
    .btn-wsp{
        width:63px;
        height:63px;
        line-height: 66px;
	}
}