.dtstaff-drop-down { 
position: relative;
display: inline-block;
width: auto;
margin-top: 0;
font-family: verdana;
}
.dtstaff-drop-down select {
display: none;
}
.dtstaff-drop-down .select-list {
position: absolute;
top: 0;
left: 0;
z-index: 1;
margin-top: 40px;
padding: 0;
background-color: #595959;
}
.dtstaff-drop-down .select-list li {
display: none;
}
.dtstaff-drop-down .button span {
background-repeat: no-repeat;
width: 100%;
padding: 4px 20px 15px 38px;
}
.dtstaff-drop-down .select-list li span {  
display: inline-block;
min-height: 32px;
min-width: 267px;
width: 100%;
padding: 25px 15px 19px 50px;
background-color: #ffffff;
background-position: left 10px center;
background-repeat: no-repeat;
font-size: 16px;
text-align: left;
color: #000;
opacity: 0.7;
box-sizing: border-box;    
}
.dtstaff-drop-down .select-list li span:hover,  
.dtstaff-drop-down .select-list li span:focus {
opacity: 1;
}