una/template/css/auth.css

.sys-auth-block {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-content: space-between;
}

.sys-auth-block.sys-auth-compact-container {
    justify-content:flex-start;
}

.sys-auth-block .sys-auth:not(.sys-auth-compact) {
    width: 48%;
}

.sys-auth .bx-btn {
    float: none;
    width: 100%;
    text-align: left;
    font-weight:normal;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    color: #fff;
    height: 3rem;
    line-height: 3rem;
    border-radius:4px;
    border:none;
}

.sys-auth .bx-btn .sys-icon {
    color: #fff;
    font-size: 1.5rem;
}

.sys-auth-compact {
	position: relative;
	display: inline-block;
}

.sys-auth-compact .bx-btn {
	width: auto;
}