You can use clip-path
property to draw your arrow and move it anywhere you want with display: grid
and justify-self
properties.
For example, you can put it in center.
.select {
display: grid;
grid-template-areas: "select";
align-items: center;
width:50%;
}
.select::after {
content: "";
width: 0.8em;
height: 0.5em;
background-color: #1b1b1b;
clip-path: polygon(100% 0%, 0 0%, 50% 100%);
justify-self: center;
margin-right:5px;
}
select {
/* A reset of styles, including removing the default dropdown arrow */
appearance: none;
/* Additional resets for further consistency */
background-color: transparent;
padding: 0 1em 0 0;
margin: 0;
width: 100%;
font-family: inherit;
font-size: inherit;
cursor: inherit;
line-height: inherit;
}
select,
.select:after {
grid-area: select;
}
<label for="standard-select">Select You Option</label>
<div class="select">
<select id="standard-select">
<option value="Option 1">Option 1</option>
<option value="Option 2">Option 2</option>
<option value="Option 3">Option 3</option>
<option value="Option 4">Option 4</option>
<option value="Option 5">Option 5</option>
<option value="Option length">
Option that has too long of a value to fit
</option>
</select>
Or put it in left side
.select {
display: grid;
grid-template-areas: "select";
align-items: center;
width:30%;
}
.select::after {
content: "";
width: 0.8em;
height: 0.5em;
background-color: #1b1b1b;
clip-path: polygon(100% 0%, 0 0%, 50% 100%);
justify-self: start;
margin-left:5px;
}
select {
/*A reset of styles, including removing the default dropdown arrow*/
appearance: none;
/* Additional resets for further consistency */
background-color: transparent;
padding: 0 1em 0 1.2rem;
margin: 0;
width: 100%;
font-family: inherit;
font-size: inherit;
cursor: inherit;
line-height: inherit;
}
select,
.select:after {
grid-area: select;
}
<label for="standard-select">Select Your Option</label>
<div class="select">
<select id="standard-select">
<option value="Option 1">Option 1</option>
<option value="Option 2">Option 2</option>
<option value="Option 3">Option 3</option>
<option value="Option 4">Option 4</option>
<option value="Option 5">Option 5</option>
<option value="Option length">
Option that has too long of a value to fit
</option>
</select>
</div>
For more information, you can read Custom Select Styles with Pure CSS and Awesome CSS Select Styles You Can Use Right Now articles.