Square A

icf-solid icf-square-a

<i className="icf-solid icf-square-a" />

Unicode: 
Hex: \e240
HTML Entity: 

.my-icon::before {
    font-family: "Iconfyra 1";
    font-weight: 900;
    content: "\e240";
}

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" fill="currentColor">
    <path d="M31 0H481a31 31 0 0 1 31 31V481a31 31 0 0 1 -31 31H31a31 31 0 0 1 -31 -31V31a31 31 0 0 1 31 -31ZM161.5,346.5l80,-193c2.27834,-6.03152 8.05252,-10.02277 14.5,-10.02277c6.44748,0 12.22166,3.99126 14.5,10.02277l80,193c3.31371,8.00813 -0.49187,17.18629 -8.5,20.5c-8.00813,3.31371 -17.18629,-0.49187 -20.5,-8.5l-20,-48.5h-91l-20,48.5c-3.31371,8.00813 -12.49187,11.81371 -20.5,8.5c-8.00813,-3.31371 -11.81371,-12.49187 -8.5,-20.5zM289,279l-33,-79l-33,79z"/>
</svg>