Help with image resizing for mobile

Site URL: https://www.daofinancialsolutions.com/video-quote-tool

Hello, I need help with CSS to reduce an image size to be mobile friendly. Right now, the headshot image is huge and takes up the whole page. All the coding I tried is not reducing the size for some reason. I think I have the div id wrong. Home someone can help, please?

Code I've tried: 

@media screen and (max-width:640px) {

/* Jermane headshot */

id#yui_3_17_2_1_1592055168751_102 {

    float: left !important;

    width: 25% !important;

}

id#yui_3_17_2_1_1592055168751_102{

    width: 100% !important;

    height: auto !important;

}

id#yui_3_17_2_1_1592055168751_102 {

    padding-top: 0 !important;

    padding-bottom: 0 !important;

}

}

Add to Home > Design > Custom CSS

@media screen and (max-width:640px) {
div#page-5ee4bfc1c0fbed78bd58409f .span-12 .span-2 {
    width: 50% !important;
    margin: 0 auto;
}
}

Awesome! This worked, thank you! Any way I can get this text to be smaller in mobile so the text and image can be on the same line, as it is on desktop view? 

@media screen and (max-width:640px) {
div#page-5ee4bfc1c0fbed78bd58409f .span-12>.row>.col {
    width: 50% !important;
    float: left !important;
}
}

This worked, thank you!