.box_przypadki{
box-sizing: border-box;
margin: 0px auto;
padding: 0px 15px;
}
.box_przypadki .divTekst{
padding: 40px;
background-color: #FFFFFF;
box-shadow: 0px 3px 20px rgba(0,0,0,0.05);
font-family: 'Courier New';
font-size: 16px;
font-weight: 400;
}

.powrot{
border: 1px solid #7EC34C;
border-radius: 6px;
font-size: 16px;
font-weight: 600;
color: #7EC34C;
font-family: 'Poppins', sans-serif;
padding: 13px 20px;
box-sizing: border-box;
margin-top: 30px;
display: inline-block;
transition: all 0.5s ease-out 0s;
}
.powrot:before{
content: "";
display: inline-block;
width: 20px;
height: 13px;
vertical-align: middle;
margin-right: 10px;
background: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAANCAYAAACpUE5eAAAABHNCSVQICAgIfAhkiAAAAJJJREFUOE9jZMACag95JTAyMs3/958xsMVu8wZsanCJMaJLwAwDiVNsILJh////S2y227aAFNeB1MJdSA3D4AZSyzCwgciGMTD8vwAUIikSkIOE6Q/LRMa6wz7/SQ0nPOobUVwINPkiMFApceEEcKRQNQxhzqeWoSgJmxqG0janIHsfmHwm/GdkDGix3XKAlFQAAPsCW1kfooCkAAAAAElFTkSuQmCC') 50% 50% no-repeat;
transition: all 0.5s ease-out 0s;
}

.powrot:hover{
background-color: #7EC34C;
color: #FFFFFF;
}
.powrot:hover:before{
filter: brightness(0) invert(100%);
}