Prevent icons inside div from collapsing to inside other div - html

Question

So using HTML, CSS and Bootstrap, i have 4 icons on the left side of the wrapper, where they are organize similar to a square. But when i resize the window, those icons collapse behind a console that i have below. How can i prevent this from happening(would be nice to keep the buttons in the same position)?
Here's the code for the CSS and the HTML
#designContainer {
display: none;
background-color: #fff;
position: absolute;
bottom: 40px;
top: 120px;
left: 10%;
/*width of toolbar*/
margin-left: 38px;
/*margin of toolbar*/
right: 20px;
overflow: hidden;
border: 1px solid #003399;
/* border-top:3px solid #FFCC00; */
z-index: 10;
cursor: crosshair;
}
#toolsWrapper {
display: none;
background-color: #fff;
position: absolute;
bottom: 40px;
top: 120px;
left: 20px;
width: 10%;
overflow: hidden;
z-index: 11;
margin-bottom: 0;
}
#toolsWrapper label img {
position: relative;
width: 30px;
height: auto;
margin: 10px 0px;
opacity: 0.3;
transition: 0.2s;
}
#toolsWrapper [type=radio] {
position: absolute;
opacity: 0;
width: 0;
height: 0;
}
/* IMAGE STYLES */
#toolsWrapper [type=radio]+img {
cursor: pointer;
}
/* CHECKED STYLES */
#toolsWrapper [type=radio]:checked+img {
opacity: 1;
}
#toolsWrapper [type=radio]:checked+img:hover {
opacity: 1;
}
#toolsWrapper [type=radio]+img:hover {
opacity: 0.7;
}
#sideToolButtons {
margin-bottom: 20px;
}
#sideToolButtons button {
outline: none;
width: 20px;
height: auto;
margin: 0;
padding: 0;
border: 0;
background: none;
cursor: pointer;
}
#sideToolButtons button:hover>img {
opacity: 1;
}
#sideToolButtons button>img {
width: 100%;
height: 100%;
opacity: 0.7;
}
#sideToolButtons .btn_disabled img {
opacity: 0.2;
cursor: default;
}
#sideToolButtons .btn_disabled:hover>img {
opacity: 0.2;
cursor: default;
}
#calcButton {
position: absolute;
bottom: 50px;
width: 30px !important;
right: 50%;
margin-right: -10px !important;
display: none;
}
#designConsole {
width: 100%;
position: absolute;
bottom: 0;
height: 60%;
min-height: 180px;
margin-bottom: 0;
}
#innerConsole {
position: relative;
color: #333;
height: 100%;
min-height: 40px;
font-size: 9pt;
border: #002774 1px solid;
overflow: hidden;
padding: 3px 6px;
}
#innerConsole:hover {
overflow: auto;
}
#innerConsole>p {
margin: 0;
padding: 0 !important;
text-align: left;
margin-bottom: 5px !important;
}
.lastEntry {
font-weight: bold;
}
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"/>
<fieldset class="step">
<legend id="stepTitle_2">Line Design</legend>
<div id="stepDesc_2" class="txtbox">
Make a sketch of the required line design. The composition and length of the channels are visible if you draw or adapt the line.
</div>
<div id="toolsWrapper" class="form-group">
<label id='drawtoggle' class="col-md-3">
<input type="radio" id="penToggle" name="mouseToggle" value=0 checked>
<img src="./images/draw.png">
</label>
<label id='cursortoggle' class="col-md-3">
<input type="radio" id="selToggle" name="mouseToggle" value=1>
<img src="./images/cursor.png">
</label>
<div id="sideToolButtons" class="form-group">
<button type="button" id="delButton" class="col-md-6" style="margin-left: 20px;">
<img src="./images/trash.png" alt=""/>
</button>
<button type="button" id="zoomFitButton" class="col-md-6" style="margin-left: 20px;">
<img src="./images/zoom_fit.png" alt=""/>
</button>
</div>
<div id="designConsole" class="form-group">
<!-- <div id="designDefinitions" class = "col-md-6"></div> -->
<div id="innerConsole" class="col-md-12"></div>
</div>
</div>
<div id="designContainer"></div>
</fieldset>
Thank you.