.sd-button-default a {
    display: inline-block;
    position: relative;
    max-width: 100%;
    padding: 10px 25px;
    margin-bottom: 5px;
    line-height: 20px;
    -webkit-border-radius: 2px;
    -moz-border-radius: 2px;
    border-radius: 2px;
    text-decoration: none;
    -webkit-box-shadow: none;
    -moz-box-shadow: none;
    box-shadow: none;
    font-size: 14px;
    font-family: 'Circular Pro', sans-serif;
    font-weight: 500;
}

.sd-button-default a:hover {
    -webkit-box-shadow: none;
    -moz-box-shadow: none;
    box-shadow: none;
}

.sd-button-default.gradient a {
    font-size: 18px;
    line-height: 23px;
    margin: 10px 0;
    padding: 15px 20px;
    text-align: center;
    transition: 0.5s;
    background-size: 200% auto;
    color: white;
    /* text-shadow: 0px 0px 10px rgba(0,0,0,0.2);*/
    box-shadow: 0 0 20px #eee;
    -webkit-border-radius: 50px;
    -moz-border-radius: 50px;
    border-radius: 50px;
    background-image: linear-gradient(to right, #437FD0 0%, #9E29D2 60%);
}

.sd-button-default.gradient a:hover {
    /*background-position: right center;*/
    background-image: linear-gradient(to right, #437FD0 0%, #9E29D2 50%);
}

.btn-grad {}
.btn-grad:hover { background-position: right center; }

.sd-button-default.paars a {
    border: 2px solid #6A47CB;
    background-color: #6A47CB;
    color: #ffffff;
    transition: all .3s ease;
}

.sd-button-default.paars a:hover {
    background-color: #6041b7;
    color: #fff;
    border: 2px solid #6041b7;
    transition: all .3s ease;
}
.sd-button-default.paars-rond a {
    border: 2px solid #6A47CB;
    background-color: #6A47CB;
    color: #ffffff;
    transition: all .3s ease;
    border-radius: 50px;
    padding: 10px 30px;
}

.sd-button-default.paars-rond a:hover {
    background-color: #6041b7;
    color: #fff;
    border: 2px solid #6041b7;
    transition: all .3s ease;
}

.sd-button-default.wit a {
    background-color: #ffffff;
    color: #000000;
    border: 2px solid #6a47cb;
    transition: all .3s ease;
}

.sd-button-default.wit a:hover {
    background-color: #6a47cb;
    color: #ffffff;
    transition: all .3s ease;
}

.sd-button-default.zwart a {
    background-color: #111111;
    color: #ffffff;
    border: 2px solid #111111;
    transition: all .3s ease;
}

.sd-button-default.zwart a:hover {
    background-color: #ffffff;
    color: #111111;
    transition: all .3s ease;
}

.sd-button-default.links {
    text-align: left;
}

.sd-button-default.midden {
    text-align: center;
}

.sd-button-default.rechts {
    text-align: right;
}