CSS to modify the 1st page of a CX/NPS survey:
.ss-classic-auth--wrapper {
padding-top: 120px;
}
.ss-classic-auth--wrapper::before {
content: "";
width: 100%;
height: 100px;
top: 0;
left: 0;
position: absolute;
background: url("https://static.surveysparrow.com/application/production/1683702443004__f2c28f78e255583acc94c995cf9964ff4937e295efd4563344298e0e270d__LBLogo_Charcoal.png"), linear-gradient(white, white);
background-size: auto 55px, 100% 100%;
background-repeat: no-repeat;
background-position: center;
box-shadow: 2px 1px 6px rgba(38,38,39,0.12);
}
.ss-classic-auth--wrapper .ss-classic-auth--form .ss-classic-auth--svg svg {
display: none;
}
.ss-classic-auth--wrapper .ss-classic-auth--form .ss-classic-auth--svg {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' width='24' height='24' stroke='%23bdbdbd' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round' class='css-i6dzq1'%3E%3Cpath d='M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z'%3E%3C/path%3E%3Cpolyline points='22,6 12,13 2,6'%3E%3C/polyline%3E%3C/svg%3E");
background-repeat: no-repeat;
background-position: center;
}